The central innovation of the Milesian philosophers was the search for the archē — that is, for…
Heraclitus is best characterized as the philosopher of…
Parmenides argued that genuine change is impossible because…
Zeno's paradoxes (Achilles and the tortoise, the arrow) were designed to…
The atomists Leucippus and Democritus responded to Parmenides by holding that…
Protagoras' dictum that 'man is the measure of all things' expresses…
The Socratic elenchus is…
The Socratic thesis that 'virtue is knowledge' implies that…
In Plato's Allegory of the Cave, the prisoner's painful ascent toward the sun represents…
In the Republic, Plato ultimately defines justice — in both the city and the soul — as…
Aristotle's chief objection to Plato's separate Forms is that they…
Aristotle's four causes of a thing are its…
Aristotle's distinction between potentiality and actuality dissolves Parmenides' problem of change by showing that change is…
The Prime Mover (Unmoved Mover) causes motion by…
For Aristotle, eudaimonia (the highest human good) consists in…
Aristotle's claim that 'man is by nature a political animal' (zōon politikon) means that…