Dualism, unthinkable, 32; in nature, 38; of Plato and Aristotle, 184
Dynamic, see Potentiality
Earth, principle in nature, 38
Education, preparation for heaven, 148; ideal, 149; true function of, 169; three stages, 170; an entelechy, 191
Egypt, visited by Pythagoras, 22; Democritus, 74; Plato, 135
Elea, seat of Eleatic school, 30; birthplace of Parmenides, 33
Eleatics, relation of Empedocles to, 62; of Democritus, 75; of Plato, 154, 165
Elements, the four, 62; in creation, 151; in body and in soul, 156
Empedocles, 58
Ends of Life, indifference as to, 96; importance in later Greek philosophy, 125; Plato's view of, 168; Aristotle's, 193; Epicurean, 222