Considerateness, a subdivision of the virtue of Temperance, I, 99, 143. Conversation, a division of speech, I, 132-133; II, 48; an art, I, 134-135. Co-operation, and civilization, II, 12-16; and the virtues, II, 17-18; _vs._ Fortune, II, 19; a universal need, II, 39; how secured, II, 21 fg. Corinth, a famous city at the Isthmus of Corinth; wealthy; next to Athens, richest in treasures of art; head of the Achaean League; sacked and utterly destroyed by the Romans under Mummius (146), I, 35; II, 76; III, 46. Cornelius; _see_ Scipio and Spinther and Sulla. Cos, chief city of the island of Cos, one of the Sporades; famed for its silks; the birthplace of Apelles, painter of the Coan Venus, III, 10. Cotta, Gaius Aurelius, distinguished orator; one of the speakers in Cicero's _de Oratore_ and _de Natura Deorum_; consul (75); II, 59. Courage; _see_ Fortitude. Covetousness, I, 68; III, 30; _see_ Avarice. Crassus, Lucius Licinius, the famous orator, II, 63; III, 67; at 21 (119) he won renown by his prosecution of Carbo, the one-time friend of the Gracchi, II, 47, 49; his aedileship most splendid, II, 57; as consul (95), he secured the expulsion from Rome of all who were not citizens, III, 47; this was a cause of the Social War. He was the greatest orator of Rome before Cicero, fluent, graceful, witty, I, 108, 133; Cicero's mouthpiece in the _de Oratore_. Crassus; Marcus Licinius Crassus Dives, the triumvir; his wealth and ambition, I, 25; sided with Sulla against Marius and grew enormously rich by the proscriptions; his avarice did not shrink from any meanness or even crime, I, 109; III, 73-75. He defeated Spartacus (71); slain in Parthia (53). Crassus; Publius Licinius Crassus Dives, II, 57; father of the triumvir, consul (97); ended his own life to escape the prescriptions of Marius (87); Cicero bought his house. Cratippus, of Mitylene, an eminent Peripatetic, came to Athens (about 50) to lecture; foremost of contemporary philosophers and teacher of young Cicero, I, 1, 2; II, 8; III, 5, 6, 33, 121. Cunning, not wisdom, II, 10; III, 72, 96. Curio, Gaius Scribonius, II, 59; orator and statesman, III, 88; consul, (76). Cynics, a school of philosophy so called from the Athenian gymnasium, Cynosarges, where they met, later adapted to their snarling manner and dirty habits; its leaders were Antisthenes of Athens, a disciple of Socrates, and Diogenes of Sinope; they taught the virtue of poverty and want, indifference to all convention and decency; Cicero's contempt for them and their so-called philosophy, I, 128, 148. Cyrenaics, the philosophic sect founded by Aristippus (_q.v._), III, 116. Cyrsilus, a Medizing Athenian, III, 48. Cyrus, the Great, founder of the Persian Empire; wonderfully gifted in winning the co-operation of men and nations, II, 16.