History of Philosophy: Ancient, Medieval, and Modern
What to master
Candidates must be able to place thinkers in period and school, state their central doctrines, and identify the argumentative move that defines them. For the ancient period, know Plato's theory of Forms and the divided line, the cave allegory as an image of epistemic ascent, and Aristotle's four causes, hylomorphism, and virtue as a mean. For the medieval period, understand Augustine's illuminationism and the problem of evil, Aquinas's synthesis of Aristotelianism with Christian doctrine, the five ways, natural law, and the realism/nominalism dispute that culminates in Ockham. For modern philosophy, distinguish rationalism (Descartes, Spinoza, Leibniz) from empiricism (Locke, Berkeley, Hume), and know Kant's Copernican turn: the categories structure experience rather than copying a mind-independent world.
Traps to expect
Questions often test attribution rather than summary. Do not confuse Plato's Forms with Aristotle's essences, or Descartes's methodological doubt with Berkeley's denial of matter. Watch for chronological bait: Hume precedes Kant, and the medieval reception of Aristotle comes after Augustine, not before. Another common trap is treating 'rationalist' as 'irrationalist', or assuming empiricists denied all innate structure; Locke attacked innate ideas, but Kant later reintroduced a priori structure without innate content.
Worked example
If asked which claim best captures Kant's response to Hume on causation, the answer is not 'causation is a fiction' nor 'causation is a divine habit'. It is that causality is an a priori category imposed by the understanding, making objective causal judgment possible while restricting knowledge to appearances. Rule of thumb: identify the problem a thinker inherited, then the mechanism they introduced to solve it.