The Timpson Lyceum · History of Philosophy (2024)

Socrates and the Golden Age of Philosophy – Lecture 16 (History of Philosophy)

Overview

Socrates (470–399 BC) stands at the hinge of Western thought. Born into an Athens that rose to imperial glory under Pericles and then collapsed through the Peloponnesian War, he watched a confident civilization slide into moral relativism — a slide the Sophists intellectualized with their slogan that "justice is the interest of the stronger" and that whatever seems good to you is good for you. Against this skepticism Socrates set an unshakable conviction: that truth, beauty, and goodness are objective and absolute, knowable in principle even if no one has yet grasped them. That single conviction, more than any finished doctrine, is what launches the Golden Age of philosophy — the unbroken chain of Socrates, Plato, and Aristotle whose systems dominate the next thousand years.

Socrates wrote nothing; everything known of him is reconstructed from four sources (the Socratic problem), chiefly Plato's early dialogues. His method was not to teach doctrines but to expose them: he cross-examined self-styled experts, drew out the contradictions hidden in their beliefs, and thereby shifted philosophy's focus from the natural speculation of the Presocratics to ethics and the human question "how ought one to live?" His two lasting contributions are the elenchus (the questioning method) and the demand for definitions of the universals — justice, courage, temperance — on which all genuine knowledge rests. The Apology, his defense at trial, shows the man himself: convinced the "unexamined life is not worth living," obedient to the god's charge to philosophize, and unwilling to save his life at the cost of his integrity.

Key Concepts

• The Sophists and skepticism — Socrates' intellectual foils: there is no objective truth, reality, or good (or if there is, it cannot be known); morality is subjective, so conflicts are settled by force ("might makes right"). Socrates opposed them on every point, largely on ethical grounds — their framework let people rationalize depravity.
• Turn from natural to moral philosophy — Trained first in Presocratic natural philosophy, Socrates grew disillusioned: physics could explain how his muscles brought him to a battlefield but never why he ought to stand there. He redirected philosophy toward how humans ought to act and why — the ethical dimension every later system must include.
• Debt to Anaxagoras — Anaxagoras first introduced Mind (nous) as a cause capable of initiating action and knowing — the closest earlier notion to purposive agency, and the springboard for Socrates' interest in ends and reasons rather than mere mechanism.
• The Socratic problem — Since Socrates wrote nothing, he is known only indirectly, through four sources: Plato (chiefly the early dialogues, taken as historically faithful), Xenophon, Aristophanes (the comedy Clouds, evidence of his celebrity), and Aristotle.
• Early vs. middle vs. late dialogues — In Plato's early (Socratic) dialogues Socrates only questions and reaches no conclusion; in the middle dialogues Plato uses him as a mouthpiece for Plato's own doctrines; in the late dialogues other experts speak. The life is drawn mainly from four: Euthyphro, Apology, Crito, Phaedo (the last being Platonic, not Socratic).
• The Socratic method (elenchus) — Cross-examination that takes an interlocutor's proposed definition or thesis, secures assent to further premises, and shows those premises jointly contradict the original claim — refuting it without Socrates ever asserting a rival doctrine.
• Socratic ignorance — Socrates claims no wisdom of his own ("I know that I know nothing"). His slight advantage over others is precisely that he does not think he knows what he does not know.
• The Delphic oracle — Told that no one is wiser than Socrates, he treats the riddle as a divine charge: he examines politicians, poets, and artisans, finds each falsely confident, and concludes the god means that human wisdom is worth little — Socrates is "wisest" only in knowing his own ignorance.
• The need for definitions — Socrates' key methodological advance: skepticism spreads because concepts like justice are unclear and undefined. A definition must state the common characteristics of a class, capture the essence (not accidental features — "featherless biped" fails when a plucked chicken is produced), and describe universals, not particulars.
• Universals and knowledge — All human knowledge is cast in universals; even describing a particular person uses universal predicates (teacher, tall, human). Grasping universals is what distinguishes humans from animals and what makes universal truth, morality, and beauty possible.
• The good, the true, and the beautiful — Socrates' conviction that all three are objective and absolute, mutually connected, and the proper object of a life's pursuit; illustrated by scientists preferring the more elegant theory (Kepler's ellipse) even when the data underdetermine the choice.
• Socratic intellectualism — The thesis that virtue is knowledge and that no one does wrong willingly: wrongdoing is ignorance of the good, since anyone who truly knew the good would pursue it.
• The Apology — Not an admission of guilt but a defense (Greek apologia). Socrates answers both his "old accusers" (lifelong rumor) and his formal ones (Meletus, Anytus, Lycon), refutes the charge of corrupting the youth, calls himself a gadfly rousing a sluggish city, and accepts death rather than abandon philosophy.
• Legacy — The "father of Western philosophy": his conviction seeds Plato's first complete system and, through it, Aristotle's; his ethics shapes the Stoics and the Cynics (Diogenes).

Worked Example

Formalizing an elenctic refutation. The elenchus is, at heart, a reductio ad absurdum: the interlocutor's definition is shown to entail its own negation, so it must be rejected. Take a standard case — someone proposes that courage is endurance, i.e., "staying at one's post no matter what."

Let $P$ be the interlocutor's thesis and introduce the auxiliary premises Socrates secures by questioning:

• $P$: Courage is (identical to) endurance — $\text{Courage} \equiv \text{Endurance}$.
• $Q_1$: Courage is something fine / admirable — $\forall x\,(\text{Courageous}(x) \rightarrow \text{Fine}(x))$.
• $Q_2$: Endurance without wisdom — foolish, reckless persistence — is not fine, indeed harmful: $\exists x\,(\text{Endurance}(x) \wedge \neg\text{Wise}(x) \wedge \neg\text{Fine}(x))$.

The derivation proceeds:

1. Assume the thesis $P:\ \text{Courage} \equiv \text{Endurance}$. The interlocutor assents.
2. By $Q_2$, take a witness $a$ that is a case of endurance but foolish and not fine: $\text{Endurance}(a)\wedge\neg\text{Wise}(a)\wedge\neg\text{Fine}(a)$.
3. From $P$, whatever is a case of endurance is a case of courage, so $\text{Endurance}(a) \rightarrow \text{Courageous}(a)$; discharging line 2 gives $\text{Courageous}(a)$.
4. By $Q_1$, $\text{Courageous}(a) \rightarrow \text{Fine}(a)$, hence $\text{Fine}(a)$.
5. But line 2 also gives $\neg\text{Fine}(a)$. The premises jointly yield a contradiction:

$\text{Fine}(a) \wedge \neg\text{Fine}(a).$

1. A set of premises entailing a contradiction cannot all be true. Since the interlocutor firmly holds $Q_1$ and $Q_2$, the thesis under test is the premise that must be surrendered:

$\bigl(P \wedge Q_1 \wedge Q_2\bigr) \rightarrow (\text{Fine}(a) \wedge \neg\text{Fine}(a)) \;\;\Longrightarrow\;\; \neg P.$

1. Therefore "courage is endurance" is refuted: courage cannot be mere endurance, since foolish endurance is not fine. The inquiry must resume with a better definition — one that folds in wisdom about what is worth enduring. $\blacksquare$

The refutation asserts no positive Socratic doctrine; it only reveals that the interlocutor's own commitments are inconsistent — the signature of the elenchus.

Summary

• Socrates (470–399 BC) reacted against Sophistic skepticism with the conviction that truth, beauty, and goodness are objective and absolute — the spark that ignites the Golden Age of Socrates, Plato, and Aristotle.
• He turned philosophy from Presocratic natural speculation toward ethics and the question of how one ought to live, building on Anaxagoras' notion of purposive Mind.
• His elenchus exposes contradictions in others' beliefs; professing his own ignorance, he never asserts doctrines but demands rigorous definitions that capture the essence of universals like justice and courage.
• The Apology portrays him as the Athenian gadfly, obedient to the Delphic charge to philosophize and choosing death over the abandonment of the examined life.
• His conviction, not any finished system, is his legacy: it drives Plato to construct the first complete philosophy and shapes later Stoic and Cynic ethics.