CHAPTER V. SOCRATES, 74 SOCRATES AND ARISTOPHANES, 74 THE PERSONALITY AND LIFE OF SOCRATES, 75 SOCRATES AND THE SOPHISTS, 80 THE UNSYSTEMATIC CHARACTER OF THE SOCRATIC PHILOSOPHY, 82 THE IDEAL OF SOCRATES, 83 WHAT THE SOCRATIC IDEAL INVOLVES, 85 THE TWO STEPS OF THE METHOD OF SOCRATES, 88 SOCRATES AND ATHENS, 91 THE LOGICAL EXPEDIENTS OF SOCRATES, 92 SOCRATES AND THE LESSER SOCRATICS, 93 THE CYNIC SCHOOL, 95 THE CYRENAIC SCHOOL, 96 CHAPTER VI. THE SYSTEMATIC PERIOD, 98 THE WANING OF THE GREEK NATIONAL SPIRIT, 98 THE PLACE OF THE THREE SYSTEMATIC PHILOSOPHERS IN GREEK HISTORY, 98 THE FUNDAMENTAL PRINCIPLE OF THE SYSTEMATIC PERIOD, 100 A SUMMARY OF GREEK PHILOSOPHY, 102 GREEK PHILOSOPHY (OBJECTIVE), 103 DEMOCRITUS AND PLATO――THEIR SIMILARITIES AND DIFFERENCES, 104 THE LIFE OF DEMOCRITUS, 106 THE COMPREHENSIVENESS OF THE AIM OF DEMOCRITUS, 108 THE ENRICHED PHYSICS OF DEMOCRITUS――HYLOZOISM BECOMES MATERIALISM, 109 THE MATERIALISTIC PSYCHOLOGY OF DEMOCRITUS, 111 DEMOCRITUS’ THEORY OF KNOWLEDGE――THE WORLD OF TWOFOLD REALITY, 114 THE ETHICAL THEORY OF DEMOCRITUS, 116