History & Systems Psychology

Determinism

The philosophical assumption that all events (including human behavior) have a finite number of causes; if these causes were known, the event could be predicted with certainty.

indeterminism

The belief that human behavior has specific causes, but those causes cannot be accurately known or measured because the act of observation alters the behavior being studied.

nondeterminism

The belief that human thought and behavior are freely chosen and independent of antecedent physical or psychical causes.

rationalism

The philosophical view that knowledge is best attained through systematic logical analysis and mental activity, rather than through sensory experience alone.

empiricism

The belief that all knowledge is derived from sensory experience and that intellectual processes must be based on evidence gathered from the senses.

nativism

The view that important human attributes or knowledge are innate (inherited) rather than acquired through experience or learning.

dualism

The belief that reality consists of two fundamental parts: physical matter and non-physical mind/spirit.

materialism

The belief that everything that exists is physical in nature; mental events are ultimately explained by the laws of physics and chemistry.

idealism

The philosophical view that ultimate reality is composed of ideas or perceptions rather than physical matter.

mechanism

The belief that the behavior of all organisms can be explained in the same way as the behavior of any machine—in terms of its parts and physical laws.

vitalism

The belief that life cannot be explained solely by physical or mechanical processes because living things contain a unique, non-physical "vital force."

600 BC

The rise of the Greek Philosophers.

Summarize the major characteristics of science

Science involves the empirical observation of phenomena, the formulation of theories to explain those observations, and the use of those theories to make predictions. It assumes a lawful universe (determinism) and seeks to discover universal laws through public, repeatable methods.

Discuss why psychology can be described both as a science and as a nonscience

Psychology is a science because it employs the scientific method, seeks lawful relationships, and utilizes experimental controls; it is described as a nonscience when it deals with subjective experiences, unobservable mental processes, or human behaviors that are influenced by free will (nondeterminism) and cannot be predicted with certainty.

According to Popper, what are the two primary reasons that theories such as those of Freud and Adler are unscientific

First, they engage in postdiction (explaining phenomena after the fact) rather than prediction. Second, they are not falsifiable, meaning they are framed so broadly that no conceivable human behavior could ever refute them.

Summarize Kuhn’s views on how sciences change. Include in your answer the definitions of the terms preparadigmatic, paradigm, normal science, and scientific revolution

Kuhn argued science changes through cycles: the preparadigmatic stage (competing schools of thought), the paradigm (a shared set of beliefs/methods), normal science (puzzle-solving within the paradigm), and a scientific revolution (where an existing paradigm is replaced by a new one due to persistent anomalies).

Within the realm of science, what is the correspondence theory of truth? Explain why it can be said that Popper accepted this theory and Kuhn did not

The correspondence theory of truth states that scientific laws must accurately correspond to an external, physical reality. Popper accepted this because he believed science moves closer to an objective truth; Kuhn rejected it, arguing that "truth" is relative to the paradigm currently in use.

Summarize Feyerabend’s view of science

Feyerabend proposed "anarchistic" science, arguing that there is no single scientific method and that progress often occurs when scientists break established rules; he believed that any prescriptive method would stifle creativity and impede the growth of knowledge.

Should psychology aspire to become a single paradigm discipline? Defend your answer

Arguments for a single paradigm suggest it would provide a unified focus and legitimacy like the "hard" sciences; arguments against it suggest that psychology's diversity of subject matter (from biology to culture) requires multiple perspectives and that a single paradigm would be too restrictive.

Is psychology a science? Defend your answer

It is a science to the extent that it uses experimental methods and seeks universal laws of behavior; it is not a science in areas that focus on unique individual experiences, psychical determinism, or phenomena that cannot be objectively measured or falsified.

Define the terms physical determinism, psychical determinism, indeterminism, and nondeterminism. Distinguish between hard determinism and soft determinism

Physical determinism cites biological or environmental causes; psychical determinism cites mental causes (thoughts/emotions); indeterminism claims causes exist but cannot be accurately measured; nondeterminism claims behavior is freely chosen. Hard determinism views causes as automatic and mechanical, while soft determinism allows for human cognitive processes (motives/values) to mediate between causes and actions.

Summarize the various proposed answers to the mind-body problem. Include in your answer definitions of the terms monism, dualism, materialism, idealism, emergentism, interactionism, psychophysical parallelism, epiphenomenalism, preestablished harmony, double aspectism, and occasionalism

The mind-body problem asks how mental and physical states relate. Monism (one reality) includes materialism (only matter) and idealism (only ideas). Dualism (two realities) includes interactionism (mind and body influence each other), emergentism (mental states emerge from brain activity), epiphenomenalism (mental events are byproducts of physical ones), psychophysical parallelism (they occur simultaneously but separately), preestablished harmony (God coordinated them), double aspectism (they are two sides of the same coin), and occasionalism (God intervenes to make them correspond).

Discuss the nativist and empiricist explanations of the origin of human attributes

Nativists argue that human attributes are innate, inherited through genetics or present at birth; empiricists argue that human attributes are the result of sensory experience, learning, and environmental influence.

Discuss rationalism and irrationalism as they apply to explanations of human behavior

Rationalism explains behavior as the result of conscious, logical thought and intellectual motives; irrationalism explains behavior as the result of unconscious, emotional, or "blind" forces that are not accessible to reason.

Describe how both the empiricist and the rationalist would explain how we gain knowledge

Empiricists explain that knowledge is gained passively through the senses and association; rationalists explain that the mind actively processes, organizes, and transforms sensory data into knowledge using innate mental categories or logic.

Discuss the problems involved in discovering and explaining discrepancies that may exist between what is physically before us and what we experience subjectively

This problem highlights that our perceptions often differ from physical reality (reification). Science struggles to bridge the gap because it must use objective methods to study the private, subjective "qualia" of experience, often leading to the debate between realism and idealism.

And the spirit and the body are the soul of man. And the resurrection from the dead is the redemption of the soul. —D&C 88:15–16

Dualism

Surely no mere mortal who has at all gone down into himself will ever pretend that his slightest thought or act solely originates in his own defined identity. —Herman Melville

Determinism

All credibility, all good conscience, all evidence of truth comes only from the senses. —Friedrich Nietzche

Empiricism

The universe is fundamentally a great mind. Consciousness is seen as primary, and matter as a projection of consciousness. —Orme-Johnson, Zimmerman and Hawkins (1997)

Idealism

As we shall see, it is virtually impossible to show how children could learn a language unless you assume they have a considerable amount of nonlinguistic cognitive machinery in place before they start. —Steven Pinker

Nativism

… Separation of the observer from the phenomenon to be observed is no longer possible. —Werner Heisenberg

Indeterminism

It is now very probable, even if not certain, that life is a purely physio-chemical phenomenon. —D.M. Armstrong

Materialism

Sense experience cannot provide the certainty needed to guarantee that what we claim to know is true. So, like mathematicians, we have to rely on reason itself as the basis for determining whether our opinions are justified true beliefs (that is, knowledge). —Stephen H. Daniel

Rationalism

Freedom is man's capacity to take a hand in his own development. It is our capacity to mold ourselves. —Rollo May (what is this an example of?)

Nondeterminism

The human body is a machine which winds its own springs. —Julien Offroy De La Mettrie

Mechanism

Thales and the natural world

Thales was the first thinker to seek natural, rational explanations for the world rather than relying on mythology or the supernatural, marking the birth of philosophical and scientific thinking in the Western tradition.

Physis according to Thales

Physis refers to the fundamental substance underlying all reality. Thales believed physis was water, that water was the primary material from which everything in the universe is made.

The critical tradition begun by Thales

Thales invited others to question and improve upon his ideas rather than accept them on authority. This tradition of rational criticism, building on, revising, or refuting prior ideas, is the foundation of science and philosophy.

You can't step into the same river twice

Everything in the universe is in a constant state of flux and change. The river changes moment to moment, so you are never stepping into the same water, meaning reality is a process of continuous becoming rather than a fixed state of being.

Heraclitus as rationalist or empiricist

Heraclitus was a rationalist. He distrusted the senses because they show only an ever-changing surface. True knowledge comes from reason, specifically from understanding the hidden Logos, the rational principle governing all change.

Heraclitus on being and becoming in psychology

Heraclitus championed becoming, the idea that the self and mind are never static. This foreshadows process-oriented views in psychology, such as the idea that personality, cognition, and identity are dynamic and always in flux rather than fixed entities.

Reality according to Parmenides

Parmenides argued that true reality is one, eternal, unchanging, and indivisible. What we perceive through the senses is mere illusion, and only reason can grasp genuine being.

Parmenides as rationalist or empiricist

Parmenides was a strict rationalist. He explicitly rejected sensory experience as deceptive and held that only pure logical reasoning reveals the nature of reality.

The point of Zeno's Paradox

Zeno's paradoxes, such as Achilles and the tortoise, demonstrate that motion and change are logically contradictory, supporting Parmenides' view that change is illusory and true reality is motionless and unified.

Mathematics arising from rationalism or empiricism

Mathematics arose from rationalism. Mathematical truths are derived through pure reason and logic, independent of sensory experience, consistent with the rationalist tradition of Parmenides and Pythagoras.

Pythagoras on the explanation for everything

Pythagoras believed the ultimate explanation for all things lay in numbers and numerical relationships, that abstract mathematical form rather than physical matter is the foundation of reality.

Pythagoras as rationalist or empiricist, dualist or monist

Pythagoras was a rationalist because knowledge comes from reason and mathematical abstraction rather than the senses, and a dualist because he separated the immortal, immaterial soul from the physical body as two distinct kinds of reality.

Pythagorean ideas in Christian theology

His belief in an immortal, immaterial soul that survives bodily death, and the idea that the soul's true home is a higher non-physical realm, profoundly influenced Christian notions of the soul's immortality and the afterlife.

The philosopher most influenced by Pythagoras

Plato built heavily on Pythagorean ideas about the immortal soul, the primacy of mathematical form, and the division between a higher realm of perfect Forms and the imperfect material world.

Empedocles' conception of physis vs. Thales'

Thales proposed a single substance, water, as physis. Empedocles argued there were four root elements, earth, water, fire, and air, that combine in different proportions to produce everything in the universe.

The two causal powers of the universe according to Empedocles

Love and Strife are the forces that combine and separate the four elements. Psychologically this anticipates ideas about approach and avoidance motivation and influenced later theories of attraction and conflict.

Empedocles' theory of perception

Objects emit tiny effluences, or copies of themselves, that travel through the air and enter sense organs whose pores match the size of the effluences, much like fitting a key into a lock, producing perception.

Empedocles as empiricist or rationalist

Empedocles was primarily an empiricist. He grounded his explanations in the physical, observable world and believed the senses rather than pure reason provide access to knowledge about nature.

Democritus as determinist or nondeterminist

Democritus was a strict determinist. All events, including human thought and behavior, result from atoms moving according to fixed natural laws, leaving no room for chance or free will.

Democritus as materialist or dualist

Democritus was a materialist. He believed everything, including the soul and mind, is composed entirely of atoms. There is no separate non-physical substance, and mind is simply a configuration of especially fine, round atoms.

Democritus and reductionism

Democritus explained all phenomena by reducing them to their most basic physical components, atoms and their movements. Complex things like life, mind, and perception are fully explained by the behavior of simpler material parts.

Democritus on perception

Objects shed thin atomic films from their surfaces that travel through the air and enter the sense organs, where they come into contact with soul-atoms, producing sensation and thought.

Hippocrates on the cause of all disorders

Hippocrates concluded that all disorders were caused by natural, physical causes, specifically imbalances among the four bodily humors: blood, phlegm, yellow bile, and black bile, with no disorder attributed to supernatural forces.

Influence of Empedocles on Hippocrates

Empedocles' four elements, earth, water, fire, and air, mapped onto the four humors Hippocrates used, black bile, phlegm, blood, and yellow bile. Each humor corresponded to an element, giving Hippocrates a natural physical framework for disease.

Hippocrates and the greatest revolution in medicine

Hippocrates removed disease from the domain of gods, demons, and magic and placed it firmly in the natural world. By insisting all illness has physical causes and physical remedies, he founded rational, scientific medicine.

Man is the measure of all things

For Protagoras, truth and reality are not absolute or objective but relative to the individual perceiver. What is true for one person may differ for another, and there is no single universal standard of truth beyond human experience.

Protagoras on man never stepping into the same river once

Unlike Heraclitus, who said you cannot step in twice because the river changes, Protagoras means the very first experience is subjective. The river you perceive is already shaped by your individual perception rather than by objective reality.

Protagoras as determinist, indeterminist, or nondeterminist

Protagoras is best understood as a nondeterminist. Because truth is relative to the individual, behavior and judgment are not governed by fixed universal laws, and humans have agency shaped by subjective experience rather than determined causes.

How Gorgias determined truth

Gorgias was a radical skeptic who argued you cannot determine truth at all. Nothing exists, and even if it did we could not know it, and even if we knew it we could not communicate it to anyone else.

Gorgias on understanding between human minds

According to Gorgias and the Sophists, one consciousness cannot truly understand another. Language and rhetoric are tools of persuasion rather than vehicles of objective truth, so what passes between minds is a constructed impression rather than direct understanding.

Implications of Gorgias' ideas for counseling

The ideas raise deep questions about whether a therapist can ever truly understand a client's inner experience and highlight the centrality of language, narrative, and constructed meaning in the therapeutic relationship, themes central to humanistic and postmodern therapies.

Socrates' primary concern

Socrates was mainly concerned with ethics, specifically how to live a virtuous and good life. His central question was what constitutes the good life and how one should live it.

How Socrates believed you can truly know something

Through rigorous dialectical questioning, the Socratic method, by testing beliefs, exposing contradictions, and arriving at clear, consistent definitions. True knowledge requires being able to give a rational account of what you claim to know.

How to live a moral life according to Socrates

By gaining knowledge of what is truly good. Socrates believed virtue is knowledge and that no one does wrong willingly. Immoral behavior results from ignorance, and the examined, rational life is the moral life.

Socrates as the first existential philosopher

Socrates insisted each person must take personal responsibility for examining their own life, values, and choices. His dictum that the unexamined life is not worth living places individual self-reflection and authentic existence at the center of philosophy, anticipating existentialism.

What was the Neolithic Revolution

The Neolithic Revolution was the gradual transition from nomadic hunter-gatherer societies to settled agricultural communities, beginning around 10,000 BCE. This shift produced surplus food, permanent settlements, division of labor, and eventually writing and organized religion, creating the social conditions that made philosophy and science possible.

Major differences between Olympian and Dionysiac-Orphic religion

Olympian religion featured anthropomorphic gods like Zeus and Apollo who were worshipped through public ritual and sacrifice. These gods were not especially concerned with morality or the afterlife of ordinary humans. Dionysiac-Orphic religion, by contrast, emphasized personal salvation, the immortality of the soul, bodily life as punishment, and ritual purification to free the soul from the cycle of reincarnation. It was more mystical, inward, and concerned with the fate of the individual soul.

Why the first philosophers were called physicists and their different physes

The early philosophers were called physicists because they sought to identify the physical substance underlying all of reality, physis meaning nature or fundamental stuff. Thales said physis was water. Anaximander proposed the Boundless or Apeiron, an indefinite, unlimited substance. Anaximenes said it was air. Heraclitus chose fire as the symbol of constant change governed by the Logos. Parmenides rejected change entirely and said reality is one, eternal, and unchanging. Pythagoras held that number and mathematical relationship were the ultimate reality. Empedocles proposed four elements combined by Love and Strife. Anaxagoras proposed an infinite number of seeds or particles organized by a cosmic mind called Nous. Democritus said physis consisted of an infinite number of tiny, indivisible atoms moving in empty space.

The epistemological question raised by Heraclitus

Heraclitus raised the question of whether the senses can be trusted to give us knowledge of reality. Because everything is in constant flux, the senses only show us a changing, unstable surface. This led him to argue that reason, not sensory experience, must be used to grasp the underlying Logos. This rationalist epistemological stance set up the central debate between rationalism and empiricism that runs throughout the history of psychology and philosophy.

How logic was used to defend Parmenides' belief that change and motion are illusions

Parmenides argued that being simply is, and non-being is not. Change would require something to come from non-being, which is logically impossible. His student Zeno supported this with paradoxes designed to show motion is contradictory. In the dichotomy paradox, to travel any distance you must first travel half of it, then half of that, and so on infinitely, making motion logically impossible. In the paradox of Achilles and the tortoise, Achilles can never overtake the tortoise because by the time he reaches where the tortoise was, it has moved ahead, producing an infinite regress. These arguments used pure logic to conclude that motion and change cannot truly exist.

Major differences between temple medicine and the medicine of Alcmaeon and the Hippocratics

Temple medicine blamed disease on angry gods and tried to cure it with prayers and rituals. In contrast, Alcmaeon and Hippocrates changed medicine into a natural science by looking for physical causes instead of divine ones. They argued that health comes from a balance in the body, introduced the four-humor theory, and focused on treating patients using natural remedies, diet, and clinical observation.

How the Sophists differed from earlier philosophers, their attitude toward knowledge, and their relationship to Socrates

The Sophists rejected the hunt for objective truth, choosing instead to teach practical persuasion and relativism (the idea that truth varies by person), whereas earlier philosophers sought universal laws of nature.

Plato's theory of forms

Plato argued the physical world is just an imperfect shadow of a higher realm of perfect, eternal concepts called Forms; true knowledge means using reason to understand these Forms, which are led by the Form of the Good.

The analogy of the divided line and the allegory of the cave in Plato

The divided line is an analogy in which a line is divided into four segments representing ascending levels of reality and corresponding modes of knowing. The lowest section is images and shadows, known through imagination. The next is physical objects, known through belief or perception. Above that are mathematical objects, known through reasoning. At the top are the Forms themselves, known through pure philosophical understanding. The allegory of the cave illustrates the same idea dramatically. Prisoners chained in a cave mistake shadows on a wall for reality. A freed prisoner who turns around and climbs toward the sunlight represents the philosopher who ascends from sensory illusion to genuine knowledge of the Forms. Plato used the allegory to argue that most people are trapped in ignorance and that education is the process of turning the soul toward the light of true reality.

Aristotle compared to Plato on the nature of knowledge

Plato was a rationalist who believed true knowledge comes from reason alone and that the Forms exist independently of the material world in a separate higher realm. Aristotle, his student, agreed that universal knowledge is attainable but argued that Forms or universals do not exist apart from particular things. For Aristotle, knowledge begins with sensory experience of the world. The mind abstracts universal patterns from particular observations. Reason and experience work together rather than reason operating independently of the senses. This makes Aristotle considerably more empiricist in orientation than Plato.

Aristotle's four causes

Aristotle argued that to fully explain any thing or event you must identify four causes. The material cause is what something is made of, such as the bronze in a statue. The formal cause is the pattern, shape, or essence that makes it what it is, the form of the statue. The efficient cause is the agent or process that brought it into being, the sculptor's work. The final cause is the purpose or goal for which it exists, what the statue is meant to commemorate. The final cause is especially important in Aristotle's thought because he saw nature as inherently purposive.

Aristotle's concept of entelechy

Entelechy refers to the idea that living things have an inner drive or potential that moves them toward their own natural fulfillment or perfection. An acorn has the entelechy of an oak tree built into it. Every organism strives to actualize its full form. This concept reflects Aristotle's teleological view of nature, in which development is directed toward a natural end rather than being simply mechanically caused from behind.

Aristotle's scala naturae and comparative psychology

Aristotle arranged all living things on a continuous ladder of nature, the scala naturae, ordered from the simplest organisms at the bottom to humans at the top. Each level possesses the capacities of all levels below it plus new ones of its own. Plants have a nutritive soul enabling growth and reproduction. Animals add a sensitive soul enabling sensation and movement. Humans add a rational soul. Because all living things share some psychological capacities, and because more complex organisms build on simpler ones, Aristotle's framework justifies comparing different species to understand psychological functions, laying a foundation for comparative psychology.

Aristotle's concept of soul and his psychology

For Aristotle the soul is not a separate substance trapped in the body but the functional organization or form of a living body. Soul and body are inseparable. Within his psychology, sensory experience provides the raw material of knowledge. Belived in sensory experience, common sense (which unifies perceptions), and reason (Passive for processing data; Active as an eternal, divine-like intellect).

Aristotle's views on imagination and dreaming

Aristotle defined imagination as the ability to recall mental images without the actual object present, serving as the bridge between sensation and thought. Dreaming is simply a byproduct of this process: when our senses shut down during sleep, the lingering "residual movements" of waking sensory experiences surface in our awareness as dreams.

Aristotle's views on happiness and the golden mean

Aristotle defined happiness (*eudaimonia*) as a lifetime of actively practicing virtue and reason. To achieve this, he used the Golden Mean—the perfect middle ground between two extremes. For example, courage is the healthy balance between cowardice (too little) and recklessness (too much). Avoid extremes, live rationally, and you achieve a flourishing life.

Aristotle's views on emotions

Aristotle treated emotions as natural and potentially valuable rather than as threats to reason. Emotions are appropriate responses to situations when felt at the right time, toward the right person, to the right degree, and for the right reason. The goal is not to suppress emotion but to regulate it through reason and virtue. Aristotle also analyzed emotions rhetorically, explaining how speakers arouse or calm emotions like fear, anger, and pity in audiences, making his account of emotion one of the earliest systematic treatments in the Western tradition.

The function of the unmoved mover in Aristotle's philosophy

the ultimate first cause of all motion and change in the universe. It doesn't physically push anything; instead, it acts as a "magnet" or final goal, drawing all things toward it through desire and purpose. It is described as pure, divine thought thinking about itself, with no potential to change because it is already completely perfect.

Aristotle's laws of association

Aristotle proposed that memories and ideas are linked by principles of association. The law of contiguity holds that things experienced together in time or space tend to be recalled together. The law of similarity holds that one thing tends to bring to mind things that resemble it. The law of contrast holds that one thing can call to mind its opposite. These principles became the foundation of associationist psychology, influencing thinkers from Locke and Hume through the British empiricists and eventually the behaviorists.

Why Greek philosophy was important to the development of Western civilization

Birth of Science: Replaced supernatural myths with rational, natural explanations for the universe.

Critical Tools: Introduced formal logic and critical thinking to evaluate arguments.

Core Disciplines: Created the foundational frameworks for ethics, metaphysics, psychology, and epistemology (how we know what we know).

Historical Bridge: Preserved by Islamic scholars, these ideas returned to Europe to directly fuel the Renaissance, the Scientific Revolution, and Christian theology.

The good life according to Skepticism, Cynicism, Epicureanism, and Stoicism

Skepticism: Achieve ataraxia (tranquil indifference) by accepting that nothing can be known for certain and completely suspending judgment.

Cynicism: Reject all social conventions, wealth, and comfort to live a raw, simple, and self-sufficient life in accordance with nature.

Epicureanism: Pursue pleasure, but define it modestly as the absence of pain and anxiety (aponia/ataraxia) through simple living, friendship, and avoiding public life.

Stoicism: Live in accordance with reason and nature, accept fate with calm equanimity, and focus entirely on virtue, which is the only true good you can control.

What the Skeptics meant by dogmatism and why they opposed it

For the Skeptics, dogmatism meant claiming to possess certain, objective knowledge about reality. They opposed it because they believed no such knowledge is possible. The senses deceive us, and reason produces contradictory conclusions. Accepting any dogmatic belief creates anxiety and attachment. By suspending judgment and refusing to commit to any doctrine, the Skeptic achieves peace of mind. Dogmatism was dangerous not just intellectually but psychologically, as it bound a person to beliefs that could not be justified.

In what sense Stoicism was an ideal Roman philosophy

Rome was a civilization built on duty, discipline, law, and the governance of a vast and often chaotic empire. Stoicism suited this temperament perfectly. It taught that one should fulfill one's social role and obligations regardless of personal feeling, accept hardship and misfortune without complaint, and govern oneself by reason rather than passion. The Stoic idea that all human beings share in a universal rational nature also supported Roman ideals of universal law and cosmopolitan citizenship. Figures like Cicero, Seneca, Epictetus, and Marcus Aurelius brought Stoicism directly into Roman public and political life.

Factors that contributed to the development of early Christian theology

Jewish Roots: Provided the core framework of monotheism, scripture, and messianic prophecies.

Greek Philosophy: Borrowed concepts from Platonism (the immortal soul) and Stoicism (the Logos / universal reason) to explain theology intellectually.

Roman Social Conditions: Poverty and political oppression made the Christian message of personal salvation and equality highly appealing.

Mystery Religions: Culturally familiarized people with the concepts of ritual purification and a dying-and-rising savior.

What characterized the Pauline version of Christianity

Paul transformed Christianity into a universal religion by basing salvation on faith in Christ (and that he died for us) rather than traditional Jewish law. He introduced a strict dualism that viewed the physical flesh as a source of sin to be suppressed by the spirit.

The philosophy of Neoplatonism

Neoplatonism, developed by Plotinus, reimagined Plato's philosophy as a mystical hierarchy where everything in reality flows downward from a single divine source, and the human goal is to spiritually ascend back up to it.

How Constantine influenced the history of Christianity

He was the most powerful ruler in Rome and decided to protect Christians instead of punishing them (Edict of Milan), gave money to build churches, and held a big meeting to settle what Christians officially believed (Council of Nicaea). This turned Christianity from a persecuted minority into the most powerful religion in the world.

How Augustine shifted locus of control from external to internal forces

Earlier frameworks, including much of Greek philosophy and pagan religion, located the causes of human behavior in external forces such as fate, the gods, the stars, or natural necessity. Augustine argued that the central drama of human existence is internal, a conflict within the soul between sinful desire and the will oriented toward God. Human beings are not simply pushed by external forces but are agents who choose, love, and will. The fall of Adam corrupted the human will, so people are drawn toward sin from within rather than compelled from without. Salvation therefore requires an internal transformation of the will through divine grace. This made the inner life, conscience, memory, and will, the primary arena of moral and psychological concern.

What Augustine believed humans could be certain of and how he arrived at this

Augustine argued that while senses can be deceptive, the act of doubting proves one's own existence ("If I am deceived, I am"), creating a foundation of certainty that is later reached through divine illumination to understand eternal truths.