Issues in moral theory. 2. 1) phenomenology of moral dutySeparating duty from desire (for happiness)2) How do we know what is our duty? Formulations of the Categorical Imperative3) relation of duty and happiness: the Highest Good4) realizability of the Highest Good: antinomy of practical reasonLeads to discussion of the postulates of morality5) what is the source of the power of moral consciousness? .