History of Early Modern and Modern Philosophy Practice Flashcards
The Cartesian Model of the Mind
The Cartesian model is defined by three central claims regarding the nature of consciousness and reality: - Epistemic primacy of subjective awareness: This principle asserts that an individual knows the contents of their conscious mind more immediately and with greater certainty than anything else in the external world, including their own physical body. - Mind-body dualism: This is the ontological position that there exist two, and only two, fundamental kinds of substances: - Thinking substance (): The non-extended, thinking essence of the mind. - Extended substance (): The physical, spatial essence of the body and material objects. - Mental transparency: This claim posits that everything within the mind—including ideas, thoughts, representations, and concepts—is inherently available to conscious awareness. There are no hidden or unconscious mental states in this model.
Historical Implications: These claims established the framework for subsequent philosophical debates. Leibniz famously rejected the transparency of the mental, Hobbes rejected the dualism of substance in favor of materialism, and Locke adopted the transparency assumption to argue against the existence of innate ideas.
Ontological Monism versus Ontological Dualism
Ontological Monism: The philosophical view that there exists only one fundamental kind of object or substance in reality. - Prominent Example: Thomas Hobbes's Materialism. Hobbes argued that every object in the universe is material or physical in nature, and thus there is no non-physical thinking substance.
Ontological Dualism: The view that there are two distinct and fundamental kinds of objects or substances that constitute reality. - Prominent Example: Cartesian Dualism. René Descartes argued that every existing object is either a thinking substance () or an extended substance ().
Contrast: While Hobbes is classified as an ontological monist, Descartes serves as the definitive ontological dualist.
Locke's Empiricism: The Acquisition of Ideas
Rejection of Innatism: John Locke explicitly denies the existence of innate ideas, asserting that all knowledge and ideas are derived from experience.
The Tabula Rasa: Locke famously describes the mind's initial state—prior to any experience—as a tabula rasa, or like a "white Paper, void of all Characters," without any ideas or principles inscribed upon it.
Sources of Ideas: Locke identifies two primary sources through which the mind acquires ideas: - Sensation: This involves "the Impressions that are made on our Senses by outward Objects, that are extrinsical to the Mind." Most ideas are acquired through sensation when the motions of small particles affect our sensory organs (eyes, ears, skin, nose, and tongue). - Reflection: This refers to the "Introspections of our own mental capacities and the activity of thinking." Examples include ideas of self-consciousness, doubting, memory, reasoning, and calculating.
Implication: This framework serves as the foundation of modern empiricism and a direct rejection of the rationalist belief in innate ideas.
Leibniz’s Critique of Empiricism
In the Preface to New Essays, Gottfried Wilhelm Leibniz argues that empiricism is false because it cannot account for our knowledge of necessary truths.
The Argument Against Perception-Based Knowledge: - Knowledge acquired through perception is knowledge of what is contingent (what happens to be the case), as opposed to what is necessary (what must be the case). - Human beings possess knowledge of necessary truths, such as the mathematical truth $2 + 3 = 5$. - Therefore, it is false that all knowledge is acquired strictly from perception.
Leibniz’s Alternative: He proposes that we possess innate ideas unconsciously. These innate structures are "triggered" or brought into conscious awareness by sensation.
Implication: This challenges Locke's empiricism by reintroducing the necessity of innate mental contents.
Petite Perceptions and the Rejection of Mental Transparency
Definition of Petite Perceptions: Leibniz introduces the concept of petite perceptions, which are microscopic perceptions that exist below the threshold of conscious awareness.
The Aggregate Theory of Consciousness: Similar to how atomists view macroscopic objects as aggregates of microscopic atoms, Leibniz views a state of perceptual consciousness as an aggregate of petite perceptions. - Example: The conscious perception of the roar of the waves at a beach is actually an aggregate of the petite perceptions of every individual wave. We are unable to distinguish the individual sounds, but together they form a "noticeable" perception.
Graduation of Mental States: Leibniz argues that "noticeable perceptions arise by degrees from ones too small to be noticed."
Implication: By distinguishing between petite perceptions and their aggregates, Leibniz rejects the Cartesian doctrine of mental transparency, effectively supporting the existence of unconscious mental states.
Berkeley on General and Abstract Ideas
Abstract Ideas (Rejected): George Berkeley defines an abstract idea as the idea of a general property considered in isolation from the particular objects and properties to which it applies. - Example: The idea of "color" in general, supposedly intelligible independently of any specific color like red, blue, or green. - Berkeley’s Criticism: He claims we cannot actually think or conceive of an abstract idea. Whenever we try to think of "color," we are actually thinking of a specific particular color. He concludes that abstract ideas are incoherent.
General Ideas (Accepted): Berkeley accepts the concept of a general idea, which is a particular idea that stands for or represents other particular ideas. - Example: The general idea of a "triangle" is a specific mental image of a triangle used to represent all other triangles, but it can never be conceived independently of its particular triangular shape.
Implication: Berkeley’s rejection of abstraction is intended to undermine representational materialism.
Berkeley’s Idealism: Esse Est Percipi
Core Claim: The existence of an idea consists in its being perceived. Consequently, the objects of thought are nothing but ideas.
The Rejection of Materialism: Berkeley argues that the concept of a mind-independent object is an incoherent abstract idea.
The Argument for Idealism: - The existence of an object is inseparable from its being perceived: "To be is to be perceived" (). - What the mind perceives are strictly ideas. - Therefore, all objects are merely ideas.
The Role of God: To address the common-sense objection that objects continue to exist when no human is thinking about them, Berkeley posits that objects persist because they are ideas constantly perceived in the mind of God.
Implication: Material objects are not mind-independent substances but are instead collections of ideas.
The Problem of the Thinking Subject in Berkeley’s System
Berkeley’s account faces a significant challenge regarding the concept of the "self" or the thinking subject: - Passivity of Ideas: Berkeley defines ideas as essentially passive. - Activity of Minds: He defines minds as active subjects that perceive ideas. - The Conflict: Since all objects of knowledge must be ideas, and since we cannot form an idea of something active (a mind) using passive components, we technically cannot form a proper "idea" of a mind.
Implication: This internal tension suggests Berkeley’s system struggles to provide an adequate epistemic account of the self.
Leibniz’s Monadology
Definition of a Monad: A monad is a simple substance that enters into composites. It is "simple" because it is without parts.
Atomic Nature: Leibniz calls monads the "true atoms of nature" and the "elements of things." However, unlike physical atoms, he conceives of them as "living atoms."
Essential Function: The principal function of a monad is the activity of representing or perceiving.
Bare Monads: Most monads are "bare monads," which represent their environment unconsciously.
The Argument for Immateriality: - A monad is simple and without parts. - Where there are no parts, neither extension, nor shape, nor divisibility is possible. - Since extension is the essence of material objects (per Descartes), and monads lack extension, monads are immaterial.
Rejection of Cartesianism: Leibniz rejects the Cartesian view of matter as inert. He argues: 1. Thinking and sensing are activities. 2. If matter is inert, it can neither sense nor think. 3. Therefore, a thinking being must be more than a mechanical aggregate of matter.
Hume’s Impressions and Ideas
David Hume categorizes all contents of the mind as "perceptions," which are divided into two types: - Impressions: These are perceptions that enter the mind with the "most force and violence." They include all our immediate sensations, passions, and emotions. - Ideas: These are "faint images" of impressions used in thinking and reasoning.
The Distinction: The only difference between an impression and an idea is their "degree of force and vivacity."
Hume’s Copy Principle
The Copy Principle: Every meaningful idea is a copy of a preceding impression. If an idea cannot be traced back to an impression, it is meaningless and should be rejected (e.g., the soul, the traditional idea of God).
Two Components of the Principle: 1. Resemblance Thesis: Ideas resemble impressions in every respect except for their force and liveliness. Example: Hearing music () vs. remembering that music (). 2. Causal Dependence Thesis: Ideas are caused by the specific impressions of which they are copies. Example: Looking at the sun creates a sense impression that causes the subsequent after-image (idea).
Implication: This principle dictates that anything not derived from experience is philosophically illegitimate.
Hume on Causation and Necessary Connection
Rejection of Necessary Connection: Hume denies that we have a legitimate idea of causation defined as a "necessary connection" between cause and effect.
The Argument: If we truly had an impression of a necessary connection, we could predict an effect with absolute certainty upon seeing the cause. However, we can never do this; we only observe that one event follows another.
Constant Conjunction: Our perception of causation is limited to "constant conjunctions" of impressions—observing that Event A is consistently followed by Event B.
The Origin of the Idea: The idea of "necessity" arises from a psychological feeling or expectation produced by habit. After seeing $A$ follow $B$ many times, the mind feels compelled to expect $B$ when $A$ appears.
Implication: Causation is reduced from a metaphysical reality to a psychological habit.
Hume’s Criticisms of the Design Argument
Hume offers several challenges to the teleological argument (argument from design): - First Criticism: The analogy between the universe and human artifacts (like a watch) is too weak to justify the conclusion of an Intelligent Designer. The universe is not sufficiently similar to human-made machines. - Third Criticism: One cannot validly transfer a conclusion about the "parts" of a system to the "whole." Hume uses the metaphor: "From observing the growth of a hair, can we learn anything concerning the generation of man?" - Fifth Criticism: The design argument is not a proper argument from experience. Valid empirical arguments require observing a constant conjunction of two types of objects. We have never observed the creation of universes in conjunction with designers; we have only seen one universe.
Kant’s Transcendental Idealism: Space and Time
Pure Forms of Sensibility: Immanuel Kant identifies Space and Time as the two pure forms of sensibility.
A Priori Nature: Space and time are a priori because it is impossible to represent any object without already presupposing them. The necessity of these forms is a condition for the possibility of any representation.
Empirical Realism: Space is "empirically real," meaning it is a valid and necessary condition for our perception of all external objects. "Through space alone is it possible for things to be outer objects for us."
Transcendental Idealism: Space is "transcendentally ideal," meaning we cannot claim that our representation of space matches the fundamental nature of space as it exists independently of us. We cannot ascribe spatial properties to "things-in-themselves."
Kant's Appearances and Things-in-Themselves
Appearances: These are objects as we represent them through the spatial and temporal lenses of the mind. Knowledge is possible only regarding appearances.
Things-in-themselves (): These are objects as they exist independently of the mind's forms of representation. Kant argues we can have no knowledge of these.
Structure of Cognition: - Faculty of Sensibility: The capacity to be affected by objects and represent their spatial/temporal properties. - Faculty of Understanding: The capacity to think about objects and form empirical judgments using concepts.
Implication: Both sensibility and understanding are necessary for empirical knowledge.
Kant’s Critique of the Ontological Argument
Main Thesis: Existence is not a "real predicate." A predicate should describe or add a property to a concept; existence merely posits the object in reality.
The $100 Bill Example: Kant argues that the concept of $100 in one's mind contains the exact same descriptive properties (color, value, size) as $100 in one's pocket. Adding "existence" to the $100 does not change the concept of the $100.
The Argument: - Discovering that a possible object is actual requires complete identity between the concept of the possible object and the actual object. - If existence were a predicate, then the actual object would have a property the possible object lacks, meaning they would no longer be identical. - Therefore, existence is not a predicate.
Implication: Because existence is not a property that can be included in a definition, the Ontological Argument (which defines God as having the property of existence) fails.
Kant on Aesthetic Judgments
Disinterestedness: A pure aesthetic judgment is "disinterested," meaning it is independent of any desire to possess, consume, or use the object. It is a contemplative act, unlike the interest one takes in something useful or a meal when hungry.
Free Play of the Faculties: Beauty results from the "free play" or harmonious interaction between the imagination and the understanding without being restricted by a specific concept.
Distinguishing Characteristics of Aesthetic Judgments: - It is accompanied by a subjective feeling of pleasure or displeasure. - It is "subjectively universal": When we call something beautiful, we speak "as if" beauty were a property of the thing itself and expect others to agree.
Implication: Beauty is subjective but possesses a structure that demands universal agreement.
Hegel’s Dialectical Method
The Process: Hegel’s method involves recognizing that the failures of previous philosophical accounts help clarify a problem and point toward a better solution. Knowledge develops through a self-correcting process of contradictions.
Sublation (): This term means to simultaneously cancel and preserve. A concept is recognized as inadequate (canceled) but retained as a necessary step (preserved) toward a higher truth.
Stages of Consciousness: In the Phenomenology of Spirit, consciousness moves through stages like sensuous-certainty, perception, and understanding. Each stage collapses due to internal contradictions and gives rise to the next, more adequate form.
The Failure of Sensuous-Certainty and Perception
Sensuous-Certainty: This stage tries to explain knowledge as immediate apprehension of "this," "here," and "now." - Hegel's Critique: These terms are actually mediated. "Now" only makes sense in relation to "not now" (before and after). Thus, immediacy is an illusion; all knowledge relies on mediation and concepts.
Perception: This stage views objects as stable things with unique properties. - Hegel's Critique: Properties like "redness" are universals that apply to many objects. Therefore, properties alone cannot individuate a unique, mind-independent object. The attempt to unify the object fails.
Conclusion of Consciousness: Consciousness realizes it cannot make sense of objects as wholly mind-independent. Instead, the subject contributes to knowledge, leading to Self-Consciousness.
Hegel on Self-Consciousness and Recognition
Social Dependency: Hegel writes, "Self-consciousness attains its satisfaction only in another self-consciousness." True self-awareness requires mutual recognition between two agents.
Master-Slave Relation: Satisfaction fails in this dynamic because recognition is one-sided and coerced. The master does not recognize the servant as a person, and the servant's recognition of the master is forced, making it "artificial."
Final Lesson: Self-consciousness presupposes a social context—a community of agents and shared practices. The mind does not exist in isolation but is inherently social.
Implication: Selfhood is defined by its relation to others and the broader social institutions of a community.