In The Sources of Normativity, Christine Korsgaard discusses the problem of human "reflexivity" using this philosopher‟s discussion of free will.
In The Sources of Normativity, Christine Korsgaard discusses the problem of human "reflexivity" using this philosopher‟s discussion of free will. This philosopher conceived of human conscience as an "inner court" of justice in which an individual examines his behavior as if he is in front of a judge. This man‟s doctrines are critiqued as egoistic in a prize essay written to the Royal Danish Society of Scientific Studies; the author of that work concludes that, unlike this philosopher, compassion is the one true source of good behavior. Arthur Schopenhauer‟s On the Basis of Morality is largely a critique of this author, who developed a thought experiment in which the subjects treat each other‟s well-being as an ultimate goal. The Kingdom of Ends was introduced by this philosopher, who formulated duty-driven ethics. For 10 points, name this author of Groundwork for the Metaphysics of Morals, who discussed the categorical imperative. 
In The Sources of Normativity, Christine Korsgaard discusses the problem of human "reflexivity" using this philosopher‟s discussion of free will.
Immanuel  Kant