Immanuel Kant: Theoretical and Practical Reason Explained

Theoretical and Practical Reason

In a general sense, Immanuel Kant distinguished between theoretical principles and practice. While there are two different uses, they stem from the same singular reason. When principles refer to the reality of things, we are dealing with theoretical reason, which generates theoretical judgments. When principles are aimed at the conduct of human beings, reason has a practical use, which generates imperatives or mandates.

The Human Being as an End in Itself

Kant asserts that human beings are ends, not means. In one of his three formulations of the Categorical Imperative, he states that we must treat ourselves and others as ends in themselves, rather than as tools to achieve a specific goal.

Fundamentals of A Priori Knowledge

Kant argues that moral knowledge does not have an empirical origin in nature; it lies in the nature of reason itself. An objective of Kant is the understanding of a priori knowledge, which is found in mathematics and Newtonian physics, as well as in the realm of absolute moral mandates.

Hypothetical Imperatives

Hypothetical imperatives prescribe an action as good because that action is necessary to achieve a specific purpose. There are two types:

• Skill: Actions required for specific technical goals.
• Prudence: Actions aimed at the universal end of happiness.

Unlike categorical imperatives, these are not universal, as they depend on the individual's desire to achieve a particular end.

The Good Will

Kant refers to the good will as that which is good in itself. Actions performed by a good will remain morally good regardless of whether they achieve the intended results. Kant attributes this inherent goodness to the will, noting that nothing else in the world can be considered good without qualification.

Classification of Actions

• Actions Contrary to Duty: These are immoral actions performed to achieve a purpose that violates moral law.
• Actions Under Duty: These are intermediate actions that are technically correct but are performed for material gain or expected outcomes rather than from a sense of duty.
• Actions From Duty: These are the only truly moral actions. They are formal, necessary, and performed out of respect for the moral law, independent of personal satisfaction or utility.