OF THE WILL 119 Simple Volition, its Origin from one of the Desires or Affections 119 Operation of Moral Causes on the Will 120 Nature of these Causes, and Source of the Diversity of their operation in different individuals 123 Circumstances required for the Uniformity of their Operation:-- 1. Knowledge 128 Truths of Natural and Revealed Religion. 2. Attention 132 Its influence on Moral Decisions. 3. Moral Habits 137 Origin and Progress of Derangement of Moral Harmony. Influence of Habits upon Character 142 Means of Correcting Injurious Moral Habits 143 Practical Conclusions from these Principles. Important Influence of Moral Habits 145 Necessity and Probability of Divine Aid in correcting Moral Derangement 149 Influence of the Mental operation called Faith 152 * * * * * PART III. OF THE MORAL PRINCIPLE, OR CONSCIENCE 155 Proofs of the Existence of Conscience as a Distinct Principle of the mind 156 Nature of its Operation as the Regulating Principle 157 Analogy between it and Reason 158 Its Influence in conveying an Impression of the Moral Attributes of the Deity 163 Knowledge derived from this Source 164 Comparison of the Divine Attributes with the Actual State of Man 167 Difficulties arising from this Comparison removed only by the Christian Revelation 169 Mental Process by which the Regulating Power of Conscience is Impaired or Lost 172 Influence of this Condition upon the Judgment in regard to Moral Truth 176 Influence of Attention in Moral Decisions 179 Man's responsibility for his belief 182 Important relation between Moral Emotions and voluntary Intellectual Processes 183 APPENDIX TO PART III. Sec. 1.--OF THE ORIGIN AND IMMUTABILITY OF MORAL DISTINCTIONS AND THEORIES OF MORALS 190