e Stoic, 345-6.

D

Darwinism, 293.
Death, problem of, 76-7.
Democracy, 123, 325.
Dialectic, 55, 183, 199, 204.
Dichotomy, 200.
Division, 199.
Dualism;
defined, 63;
of Eleatics, 68-70;
of Anaxagoras, 105;
of Plato, 238;
of Aristotle, 334-5.

E

Eclipses, 103.
Ecstasy, 376-7.
Efficient cause, 269;
identified with final cause, 273-4.
Elements, The Four, 83.
Emanation, 371, 374-5.
Empty Space, 47, 89, 291-2
Eros, 204.

Evolution;
Anaximander and, 27;
Aristotle's doctrine of, 293-9, 307-12, 333, 336-7;
Spencer's doctrine of, 308 et seq.

{379}

Evil, problem of, 240-1.
Explanation, scientific, 64-5.
External goods, value of, 159, 31-6, 350, 359.

F

Faith, age of, 151.
Family, The; Aristotle on, 324.
Final cause, 269;
identified with formal cause, 273.
Fire, as first principle, 78, 347.
First Cause, 66.
First Mover, 284-5.
Form, Aristotle's doctrine of, 267, 274-8.
Formal cause, 269;
identified with final cause, 273.
Free Will, 320, 348, 355.
Friendship, 225, 359.

G

Genius, artistic, 231.
Geocentric hypothesis, 38, 211, 305.
Geometry, 3-5, 275.
God;
Xenophanes on, 41-2;
Socrates on, 132;
Plato on, 202-4;
Aristotle on, 283-8;
as first mover, 284-5;
as thought of thought, 285-6;
relation of, to the world, 282;
Plotinus on, 373.
Gods, The;
Democritus on, 92;
Protagoras on, 112;
Socrates on, 132;
Epicurus on, 357.
Good,
The Idea of, 198, 200-1, 244;
as God, 203.
Gravitation, 294-5.

H

Habit, 7.
Happiness;
Antisthenes on, 159;
Plato on, 220-1;
Aristotle on, 314-15;
Stoics on, 351;
Epicurus on, 358, 361;
distinguished from pleasure, 221.
Heavenly bodies, The;
Anaximander on, 26;
Pythagoreans on, 38;
Xenophanes on, 43;
Anaxagoras on, 103;
Plato on, 211;
Aristotle on, 305-6.
Heliocentric hypothesis, 38.
Hinduism, 71, 197, 308, 312-13.

I

Idealism;
of Parmenides, 47 et seq;
essentials of, 48, 49, 235;
Plato as founder of, 235.
Ideas,
Theory of, 174, 183-207;
Aristotle on, 262-5.
Imagination, 300.
Immortality;
Atomists on, 92;
Plato on, 175, 212;
Aristotle on, 302-3;
Epicurus on, 357.
Indian Thought, 14-16; see also Hinduism.
Individualism, 323.
Induction, 144, 146, 190, 206, 260.
Infinite divisibility;
Zeno on, 56;
Anaxagoras on, 96;
Aristotle on, 292-3;
Hume on, 57-8;
Kant on, 57;
Hegel on, 58-60.
Inorganic matter, 294-6.
Insight,