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 Politicus, see _Statesman_ Potentiality (Dynamic idea), how used by Aristotle, 185; of feeling, 195; equals matter, 203 Practicality, _v._ Idealism, 4 Predication, Epicurus' view of, 215 Propositions, _v._ Things, 189 Protagoras, 85; Plato's criticism of, 89; dialogue, 136 Protoplasm, explains nothing, 37 Punishment, Sophistic theory of, 88 Pyrrho, founder of Scepticism, 211 Pythagoras, 23 Quinta Essentia, origin of, 202 Quixote, the world admires, 227 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 Reminiscence, see _Recollection_ Republic, dialogue, 146; relation of, to Aristotle's doctrine, 192 Revelation, how criticise? 158 Right, Might without, is weak, 147 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 Scrip and staff, emblems of Cynics, 130 Semitic elements in later Greek philosophy, 228 Seneca, on Epicurus, 225; exponent of Roman Stoicism, 242