Plato, criticism of Protagoras, 89; a _complete_ Socratic, 103: took refuge with Euclides, 132, 134; compared to Shakespeare, 134; as psychologist, 155; central doctrines of, 155; dogma impossible, 162; Aristotle on, 163; relation to Heraclitus, _ib._; and to the Eleatics, 165; relation of Aristotle to, 178, 181; his mistake as to universals, 182
Pleasure, end of life, 126; contempt of, 131; reason gives law to, 149; is it chief good? 156; Epicurean theory of, 222; moral function of, 238
Politics, relation to philosophy, 82, 97; influence of sophistry upon, 88
Potentiality (Dynamic idea), how used by Aristotle, 185; of feeling, 195; equals matter, 203
Protagoras, 85; Plato's criticism of, 89; dialogue, 136
Realisation (Actuality), correlative of potentiality, 185; relation to Plato's Recollection, 188; chief good, 194
Reality, standard of, 40, 51; distinction between, and appearance, abolished, 83, 87; no necessary relation between thought and reality, 94; the only reality appetite, 96; thoughts of God the only reality, 164; approximations to, 165; ideal can never wholly fit, 239
Reason, function of, 37, 56; corrector of the senses, 61; governs evolution, 70; worse made to appear better, 84; realises itself through individuals, 114; gives law to pleasure, 149, 156; man possesses, 191; actual and latent, 192; partly obedient, partly contemplative, 194; an element in Habit, 195; an impersonal ruler, 196
Recollection (or Reminiscence), departure and renewal of knowledge, 138; doctrine of, in Plato, 142; Platonic criticism of, 154; nature of, 165; relation of Aristotle's theory to, 188
Republic, dialogue, 146; relation of, to Aristotle's doctrine, 192
Samos, birthplace of Pythagoras, 23; of Melissus, 46; of Epicurus, 211
Scepticism, its isolating influence, 94; destroys not appetite, but moral restraint, 95; represented birth of new conditions, 98; phase of decay in distinctively Greek life, 211
Science, philosophy different from, 9; happy guesses in, 152; different kinds of, 180; can never exhaust object, 188
Semitic elements in later Greek philosophy, 228
Seneca, on Epicurus, 225; exponent of Roman Stoicism, 242
Senses (or Sensation), channel for the eternal wisdom, 18; data of, no measure of reality, 40; not source of ideas, 45; untrustworthy, 49; necessary to truth, 56; no test of truth, 60; relation to reason, 61; based on composite character of body, 71; atomic theory of, 79; give no absolute truth, 80; no distinction between, and thing or mind, 87; reaction of moral theory on theory of sensation, 102; invalid as against reason, 133; has rational elements conditioning, 151; universal cannot belong to, 163; universals furthest removed from, 180; only source of knowledge, 214; Epicurean theory of emission, 221; Stoic theory, 230