# The Minor Socratics and Plato Philosophy I · Ancient Philosophy: From the Milesians to Plato · https://tryals.app/learn/philosophy-i/the-minor-socratics-and-plato ## One Teacher, Several Heirs Socrates left no doctrine, so his followers took quite different things from him, and the disagreement is evidence about how open his practice really was. The **Cynics**, from Antisthenes and Diogenes, took the priority of virtue to its conclusion: if virtue is sufficient for happiness, everything else — property, reputation, comfort, convention — is worthless. Diogenes lived in a jar, discarded his cup on seeing a child drink from cupped hands, and told Alexander the Great to stop blocking his sunlight. The point of the theatre was to show that convention has no authority. The **Cyrenaics**, from Aristippus, drew the opposite conclusion: the good is **immediate pleasure**, since only present sensation is certainly known. Where the Cynics minimised needs, the Cyrenaics maximised enjoyment, yet both claimed the same teacher. The **Megarians**, from Euclides, combined Socratic ethics with Eleatic logic and produced the paradoxes: the **Liar** ("this sentence is false") and the **Sorites** (one grain is not a heap; adding one grain never makes a heap; so no number of grains is a heap). These are still live problems. **Plato** is the heir who transformed the inheritance. His **theory of Forms** answers a question the elenchus kept raising: Socrates asks what justice *is*, and the answers keep failing because they give examples rather than the thing itself. Plato's response is that the thing itself exists, a perfect, unchanging, non-spatial **Form** of justice, which particular just acts imperfectly resemble. The theory also settles Heraclitus against Parmenides by giving each a domain: the sensible world genuinely flows, and the world of Forms genuinely does not. Both were right about different things. The **divided line** in the *Republic* sets out four levels of cognition — imagination, belief, reasoning, understanding — and contains a nice mathematical fact. Divide a line unequally, then divide each part in the same ratio, and the two middle segments come out **exactly equal**, whichever ratio you chose. Plato uses that equality to mark belief and reasoning as the two intermediate states. > **Common pitfall:** treating the Forms as an obvious mystification. They answer a real problem: definitions by example fail, yet we manage to apply "just" to new cases, so something must be shared. Whether that something is a separate entity is exactly what Aristotle would go on to dispute. ## Practice questions 6 of this lesson's 11 practice questions, with answers. The full set is in the app. ### 1. What problem does the theory of Forms answer that arises directly from the Socratic elenchus? A. Socratic ignorance made moral virtue entirely impossible to teach systematically B. Definitions by example keep failing, yet we apply terms correctly to new cases C. Cross-examination showed that sensory particulars constantly change their qualities D. The refutations produced too many equally valid rival definitions to select from **Answer:** B. Definitions by example keep failing, yet we apply terms correctly to new cases **Why:** The dialogues fail because interlocutors give examples rather than the thing itself, yet everyone applies "just" correctly to new cases, so something must be shared. Plato’s answer is that the thing itself exists as a Form. Page: https://tryals.app/practice/philosophy-i/the-minor-socratics-and-plato/what-problem-does-the-theory-of-forms-answer-that-arises-directly ### 2. Plato’s divided line marks four levels of cognition. How many of these belong to the intelligible realm rather than the visible one? **Answer:** 2 **Why:** **Two**: reasoning and understanding belong to the intelligible realm, while imagination and belief belong to the visible. The first cut separates the realms and the second grades within each. Page: https://tryals.app/practice/philosophy-i/the-minor-socratics-and-plato/platos-divided-line-marks-four-levels-of-cognition-how-many-of ### 3. Both Cynics and Cyrenaics claimed Socrates as their sole authority, yet developed opposing ethical systems. What core premise allowed such divergent conclusions to emerge from the same teacher? A. They disagreed over whether virtue alone is sufficient for happiness B. They built on different accounts of what epistemic certainty requires C. They split over whether Socratic ethics applies to social conventions D. They differed on whether sensory experience can yield moral knowledge **Answer:** A. They disagreed over whether virtue alone is sufficient for happiness **Why:** Both schools accepted Socratic priority of the good, but Cynics equated virtue entirely with happiness, stripping away worldly needs, whilst Cyrenaics identified the good with immediate sensation. The split concerns the sufficiency of virtue versus bodily pleasure, not formal epistemological criteria. Page: https://tryals.app/practice/philosophy-i/the-minor-socratics-and-plato/both-cynics-and-cyrenaics-claimed-socrates-as-their-sole-authority ### 4. The two middle segments of Plato’s divided line are equal whatever ratio is used to divide it. **Answer:** True **Why:** True, it holds for every ratio, which is a genuinely elegant fact. Plato exploits the equality to mark belief and reasoning as the two intermediate cognitive states, neither highest nor lowest. Page: https://tryals.app/practice/philosophy-i/the-minor-socratics-and-plato/the-two-middle-segments-of-platos-divided-line-are-equal-whatever ### 5. Match each figure to what he is remembered for. **Answer:** - Diogenes → Living in a jar and flouting convention publicly - Aristippus → Holding that immediate pleasure is the good - Euclides of Megara → Joining Socratic ethics to Eleatic logic - Plato → The theory of Forms and the divided line **Why:** Three extend one strand of Socrates each; Plato transforms the whole inheritance by adding a metaphysics the elenchus itself never had. That difference is why one school became the tradition and the others became footnotes. Page: https://tryals.app/practice/philosophy-i/the-minor-socratics-and-plato/match-each-figure-to-what-he-is-remembered-for ### 6. Arrange these developments in order. **Answer:** 1. Socrates practises the elenchus and leaves no written doctrine 2. His followers take different lessons and found rival schools 3. Plato identifies why definitions by example keep failing 4. He posits Forms as the objects definitions aim at 5. The theory assigns Heraclitus and Parmenides each a domain **Why:** The sequence runs from a method with no doctrine, through the disagreement that absence produced, to a theory motivated by a Socratic problem, with the Presocratic reconciliation arriving as a bonus rather than as the aim. Page: https://tryals.app/practice/philosophy-i/the-minor-socratics-and-plato/arrange-these-developments-in-order