Introduction; Part I The Moral Criterion in Platonism; Chapter I Who is the Judge?; Chapter II The Objective Basis of the Moral Judgment; Chapter III The Moral Standards; Chapter IV The Psychological Aspect of the Moral Judgment, (a) Analysis; (b) Genesis; Chapter V Validity of the Moral Judgment; Chapter VI Conclusion: The Moral Criterion; Part II The Moral Criterion and the Highest Good; Chapter VII Soul—Body—Wealth; Chapter VIII The Value-Scale: Wealth, Strength, Beauty, Health, Courage, Justice, Temperance, Wisdom; Chapter IX Private and Public Spirit in Platonism; Chapter X Mind and its Value; Chapter XI The Divine, and its Value; Chapter XII Conclusion: The Significance of Value-Scales; Part III The Highest Goods in Platonism; Chapter XIII Pleasure, Wealth, Health; Chapter XIV Power; Chapter XV Happiness,. and Its Ethical Value; Chapter XVI Immortality, and its Ethical Value; Chapter XVII Goodness of Character as the Highest Good: Temperance, Justice; Chapter XVIII Genius, Religion, Science, Philosophy, Mind, as Chief Goods; Chapter XIX The Mean, and the Idea of Good as “Summum Bonum”; Chapter XX Civilization, the Community, Communal Self-Knowledge, Law and Order, the Comprehensive or Composite Life, the Excellence and Preservation of the Whole, God, as Highest Goods; Chapter XXI Conclusion: The Platonic Highest Good;