Temperamental Optimism and Pessimism, 33. How reconcile with life one bent on suicide? 38. Religious melancholy and its cure, 39. Decay of Natural Theology, 43. Instinctive antidotes to pessimism, 46. Religion involves belief in an unseen extension of the world, 51. Scientific positivism, 52. Doubt actuates conduct as much as belief does, 54. To deny certain faiths is logically absurd, for they make their objects true, 56. Conclusion, 6l. THE SENTIMENT OF RATIONALITY . . . . . . . . . . . . . . . . . . 63 Rationality means fluent thinking, 63. Simplification, 65. Clearness, 66. Their antagonism, 66. Inadequacy of the abstract, 68. The thought of nonentity, 71. Mysticism, 74. Pure theory cannot banish wonder, 75. The passage to practice may restore the feeling of rationality, 75. Familiarity and expectancy, 76. 'Substance,' 80. A rational world must appear {xvi} congruous with our powers, 82. But these differ from man to man, 88. Faith is one of them, 90. Inseparable from doubt, 95. May verify itself, 96. Its rôle in ethics, 98. Optimism and pessimism, 101. Is this a moral universe?--what does the problem mean? 103. Anaesthesia _versus_ energy, 107. Active assumption necessary, 107. Conclusion, 110. REFLEX ACTION AND THEISM . . . . . . . . . . . . . . . . . . . . 111 Prestige of Physiology, 112. Plan of neural action, 113. God the mind's adequate object, 116. Contrast between world as perceived and as conceived, 118. God, 120. The mind's three departments, 123. Science due to a subjective demand, 129. Theism a mean between two extremes, 134. Gnosticism, 137. No intellection except for practical ends, 140. Conclusion, 142. THE DILEMMA OF DETERMINISM . . . . . . . . . . . . . . . . . . . 145 Philosophies seek a rational world, 146. Determinism and Indeterminism defined, 149. Both are postulates of rationality, 152. Objections to chance considered, 153. Determinism involves pessimism, 159. Escape _via_ Subjectivism, 164. Subjectivism leads to corruption, 170. A world with chance in it is morally the less irrational alternative, 176. Chance not incompatible with an ultimate Providence, 180. THE MORAL PHILOSOPHER AND THE MORAL LIFE . . . . . . . . . . . . 184 The moral philosopher postulates a unified system, 185. Origin of moral judgments, 185. Goods and ills are created by judgment?, 189. Obligations are created by demands, 192. The conflict of ideals, 198. Its solution, 205. Impossibility of an abstract system of Ethics, 208. The easy-going and the strenuous mood, 211. Connection between Ethics and Religion, 212. GREAT MEN AND THEIR ENVIRONMENT . . . . . . . . . . . . . . . . 216