Introduction; Part 1 First Period The Pre-Socratic Philosophy; Chapter 1 I. The Milesians; Chapter 2 II. The Pythagoreans; Chapter 3 III. The Eleatics and Heraclitus; Chapter 4 IV. The Compromise-Systems of the Fifth Century and the Last of the Pre-Socratic Philosophers; Chapter 5 V. The Sophists; Part 2 Second Period The Attic Philosophy: Socrates and the Socratics, Plato, Aristotle; Chapter 6 I. Socrates; Chapter 7 II. The Minor Socratic Schools; Chapter 8 III. Plato and the Academy; Chapter 9 IV. Aristotle and the Peripatetic School; Part 3 Third Period Hellenistic Philosophy. Stoa. The Later Cynicism. Epicureanism. Scepticism. Eclecticism; Chapter 10 I. The Stoic Philosophy; Chapter 11 II. The Later Cynicism; Chapter 12 III. The Epicurean Philosophy; Chapter 13 IV. The Sceptics; Chapter 14 V. Eclecticism; Part 4 Fourth Period The Philosophy of the Roman Empire; Chapter 15 I. Continuance and Revival of the Old Schools; Chapter 16 II. Neo-Platonism;