Damon, a Pythagorean and friend of Phintias, III, 45. Debts, cancellation of, II, 78-79, 83-85; avoidance of, II, 84; payment enforced, II, 84. Decius; Publius Decius Mus, father and son, I, 61; III, 16; the former, consul with Manlius Torquatus (360), devoted himself to death in the battle on the Veseris. The son did the same at the battle of Sentinum (295) and brought the Samnite wars to an end. Demetrius of Phalerum (345-283), orator, statesman, II, 60; philosopher, poet; pupil of Theophrastus, I, 3; the only Greek who was both orator and philosopher, I, 3; he inspired the founding of the Alexandrine library. Demetrius Poliorcetes, II, 26; son of Antigonus and king of Macedon (294-287). His life was occupied with continuous warfare against enemies in Egypt, Asia, Greece, Macedonia, Epirus. Demosthenes, the greatest orator of Athens (385-322); pupil of Isaeus and of Plato, I, 4; might have been a great philosopher, I, 4; at 18 he prosecuted his defaulting guardian with success, II, 47; then turned to public speaking and statecraft as a profession. Diana, goddess of the light of the night, identified with Artemis, III, 95. Dicaearchus, of Messana (4th century), a Peripatetic philosopher, geographer, and historian, II, 16; pupil of Aristotle and friend of Theophrastus. Dinomachus, a Greek philosopher, always named with Calliphon (_q.v._), III, 119. Diogenes, of Babylonia, pupil and successor of Chrysippus; best known for his part in the famous embassy with Carneades and Critolaus from Athens to Rome (156) where, on motion of Cato, they were not permitted to remain; his ethics rather loose, III, 51-55, 91. Dion, a kinsman of the elder Dionysius and tyrant of Syracuse (356-353); a devoted disciple of Plato at Syracuse and Athens, I, 155. Dionysius, the elder (430-367), tyrant of Syracuse (405-367), a typically cruel tyrant, suspicious and fearful, II, 25; III, 45 (?); devoted to art and literature, himself a poet crowned with a prize at Athens. Dionysius, the younger, son of the preceding and tyrant of Syracuse (367-356, 346-343); devoted to literature; Plato, Aristippus, Archytas, and others were brought to his court. Whether the Damon and Phintias story is to be connected with him or his father is uncertain, III, 45 (?). Drusus, Marcus Livius, son of Gaius Gracchus's colleague in the tribuneship; an eloquent orator, I, 108; as tribune (91) he attempted to renew the social and agrarian legislation of Gracchus and was assassinated.