Sin, willing and unwilling, 121
Sinope, birthplace of Diogenes, 130
Sleep, cuts us off from eternal wisdom, 18
Socrates, 101; relation to Anaxagoras, 54; his doctrine in general, 100; marks a parting of ways, 103; warning 'voice' or 'daemon' of, 104; philosophic midwifery, ib.; irony, 105; not an expositor, 115; relation to Sophists, ib.; Aristippus student of, 124; criticises Antisthenes, 129; Plato pupil of, 134; dialogue concerning, 136; conversation of Diotima with, 137; in Republic, 146
Socratics, complete and incomplete, 103; incomplete, 125, 128
Solon, Plato descended from, 134; praised, 140
Sophists, 82; name first used by Protagoras, 85; influence of, on politics, 88, 97; refuted by the arts, 111; relation to Socrates, 115; Platonic dialogues on, 136; dialogue so named, 159
Soul of all things, 6; a fiery exhalation, 18; God soul of the world, 27; soul realised in body, ib.; soul double, 28; triple, 28, 169; life of soul a harmony, 29; composed of finest atoms, 78; even that of universe, 80; loss of one's soul, 150; world-soul the first creation, 151; divisions of, 169; an entelechy, 203; definition of, 204; v. body, 205; Epicurean theory of, 220
Space, existence prior to, 37, 167; unthinkable except with reference to body, 75
Sparta, ideas from, in Republic, 148; influence on Plato's Laws, 160