This thinker argued that morality and freedom imply one another, sometimes called the reciprocity thesis. In one work, he stated that non-empirical concepts need a transcendental deduction to justify them. That work is divided into a "Transcendental 
This thinker argued that morality and freedom imply one another, sometimes called the reciprocity thesis. In one work, he stated that non-empirical concepts need a transcendental deduction to justify them. That work is divided into a "Transcendental Doctrine of Elements" and a much shorter one "Of Methods." This author of Groundwork of the Metaphysics of Morals contrasted material and formal principles and their corresponding hypothetical and categorical imperatives. He also claimed that the title concept of one work was related to a priori, not a posteriori, knowledge. For 10 points, name this author of the Critique of Pure Reason and the Critique of Practical Reason.
This thinker argued that morality and freedom imply one another, sometimes called the reciprocity thesis.
Immanuel Kant