Sergius, Gaius; _see_ Orata. Sicily, the great island south-west of Italy, fertile and rich, occupied along the coasts by prosperous Greek colonies, a Roman province (212 on), an easy prey for rapacious governors, as Verres whom Cicero prosecuted (70), II, 50. Sicyon, a city near Corinth, famous as a centre of art; Aratus and the tyranny, II, 81-82. Silanus, Decimus Junius, stepfather of Marcus Brutus, consul (62), aedile, II, 57. Slaves, duty toward, I, 41; III, 89. Social Instinct, man and beast, I, 12, 50; bees, I, 157; leads to justice, I, 157; weighed against justice, I, 159 fg. Society, principles of, I, 50-57; III, 53; rights of, I, 21; service to, I, 153, 155. Socrates (469-399), the great philosopher and teacher, II, 43; his ethics, III, 11, 77; his perfect poise, I, 90; brilliant dialectician, with a profound meaning in every word, I, 108; personal eccentricities, I, 148. "The noblest, ay, and the wisest and most righteous man that we have ever known." Socratic, following Socrates, I, 104, 134; II, 87; most schools of philosophy are based on the teaching of Socrates--the Academy, I, 2; the Peripatetic, I, 2; III, 20; the Cynic, I, 128; the Cyrenaic, III, 116; the Stoic, I, 6; etc. Sol, the sun-god, father of Phaëthon, III, 94. Solon, the great lawgiver of Athens (638-558 _ca._), poet, soldier, statesman; his feigned madness and the acquisition of Salamis, I, 108; his constitution and the reorganized Areopagus, I, 75. Sophocles, the great tragic poet (495-406), supreme on the Athenian stage (468-441); general in the war against Samos (440), I, 144. Sparta, capital of Lacedaemon in the south-eastern part of the Peloponnesus, III, 99; constitution of Lycurgus, I, 76; national character, I, 64; position at end of Persian wars, I, 76; at end of Peloponnesian war, I, 76; her arsenal, III, 49; disasters, I, 84; despotic, II, 26; cause of her fall, II, 77, 80. Stoics, adherents of the school founded by Zeno, an offshoot from Cynicism, I, 128; refounded by Chrysippus; philosophy with them is practical, making life accord with Nature's laws, III, 13; virtue and philosophy are identical; virtue the only good, I, 6; III, 11, 12; moral wrong the only evil, III, 106; pain no evil, III, 105; no degrees of right or wrong, I, 10; etymologists, I, 23; define fortitude, I, 62; temperance, I, 142; duties, III, 14; controversies, III, 91; their right to teach ethics, I, 6; Cicero adopts their teaching, I, 6; III, 20; common interests, I, 22; their theology a pantheistic materialism, God working in his providence, III, 102; representative Stoics, II, 51, 86; III, 51.