Introduction to Philosophy and the Philosophical Enterprise

Introduction to Philosophy

  • Etymology & Concept: Derived from Greek Philo (Love) and Sophia / σοφία (Wisdom), meaning "Love of Wisdom". A philosopher seeks wisdom rather than claiming absolute knowledge.

  • Knowledge vs. Wisdom: Knowledge is knowing facts; Wisdom is knowing how to use facts correctly.

  • Formal Definition: Philosophy is the science of all things through their first causes under the light of natural reason.

  • Core Elements:

    • Philosophy as a Science: Systematic, logical, and organized reasoning process: 1) Observe, 2) Ask questions, 3) Analyze, 4) Draw logical conclusions.

    • Scope: Examines all aspects of reality holistically using reason, unlike specialized fields such as Biology, Sociology, or Linguistics.

    • Natural Light of Reason: Relies strictly on human intellect, critical thinking, and logic rather than supernatural revelation.

    • Holistic Thinking: Connects ideas, considers multiple viewpoints, evaluates long-term consequences, and seeks deeper context.

Branches of Philosophy

  • Metaphysics: Studies reality, existence, being, and the universe ("What is real?"). Distinguishes Appearance from Reality.

  • Ethics: Studies morality, good and evil, moral decisions, and human actions ("What is right and wrong?").

  • Epistemology: Studies knowledge, truth, belief, and evidence ("How do we know?").

  • Logic: Derived from Greek logike / λoγικηˊ\lambda o\gamma \iota \kappa \acute{\eta } ("reasoning" or "study of thought"). Teaches valid reasoning and correct thinking ("Is the reasoning valid?").

  • Aesthetics: Studies beauty, art, taste, and creativity ("What is beauty?"). Arthur Schopenhauer noted: "You must treat a work of art like a great man. Stand before it and wait patiently until it deigns to speak."

The Philosophical Enterprise

  • Cosmocentric Views: Focuses on the cosmos/nature to determine the origin, structure, and basic substance (arché) of reality.

    • Heraclitus (535–475 BC): "Philosopher of Change". Stated "The only constant in life is change" and "No man ever steps into the same river twice." Fire is his symbol of reality.

    • Parmenides (515–450 BC): Founder of the Eleatic School. Argued reality is Being—eternal, complete, and unchanging; sensory perception of change is an illusion.

  • Theocentric Views: Medieval Western philosophy placing God at the center to examine existence, morality, and reality.

    • Avicenna (Ibn Sina): Persian Muslim philosopher who distinguished between:

    • Contingent Being: Can exist or not exist; depends on another cause.

    • Necessary Being: Must exist and is self-sufficient (God).

    • Essence vs. Existence: Essence is what something is; Existence is that something actually is. For contingent beings, essence does not guarantee existence; for the Necessary Being, essence and existence are identical.

    • St. Thomas Aquinas: Influenced by Aristotle; wrote Summa Theologiae. Taught that faith and reason complement each other and formulated the Five Ways:

    1. Argument from Motion: Potentiality moving to actuality requires a First Unmoved Mover (God).

    2. Argument from Efficient Cause: Cause-and-effect sequences require a First Efficient Cause (God).

    3. Argument from Contingency: Dependent beings require an ultimate Necessary Being (God).

    4. Argument from Degrees of Perfection: Comparative levels of goodness/truth point to Maximum Perfection (God).

    5. Argument from Governance/Design: Non-intelligent nature acting toward regular goals requires an Intelligent Governor (God).

  • Anthropocentric Views / Modern Philosophy (1500–1900): Places human reason, experience, and capacities at the center.

    • Rationalism: Knowledge originates primarily through reason independent of sensory experience.

    • René Baterbonia Descartes (1596–1650): Father of Modern Philosophy. Applied Methodic Doubt to reach the indubitable truth: "Cogito, ergo sum" ("I think, therefore I am").

    • Empiricism: Knowledge originates fundamentally through sensory experience.

    • John Locke (1632–1704): Rejected innate ideas; claimed the mind begins as a Tabula Rasa ("Blank Slate"). Knowledge derives from Sensation (external sensory experience) and Reflection (internal mind operations).

Doxa and Episteme

  • Doxa: Greek term for belief or opinion ("what seems to be true," derived from dokein), based on appearances, feelings, assumptions, or bias. Also means Glory.

  • Episteme: True knowledge targeting actual reality.

  • Historical Approaches to Knowledge:

    • Plato: Doxa is uncertain, sensory-based opinion; Episteme targets true reality. Introduced Plato's Dialectic: Begin with an opinion →\rightarrow ask questions →\rightarrow test assumptions →\rightarrow locate contradictions →\rightarrow apply counterexamples →\rightarrow refine the idea.

    • Aristotle: True knowledge requires understanding causes through logical demonstration. Developed the Syllogism:

    • Major Premise: All humans are mortal.

    • Minor Premise: Socrates is human.

    • Conclusion: Therefore, Socrates is mortal.

    • René Descartes: Systematically doubted sensory experience, memory, and physical presence using the Method of Doubt to locate indubitable foundations ("Cogito, ergo sum"). Episteme requires clear and distinct rational ideas.