Analysis of Kant's categorical imperative in metaphysicsThe basis of the metaphysics of morality is a foundation of Kant's philosophy, in this book, Kant wants to build a kingdom moral metaphysics. First, Kant extracted the categorical imperative from the concepts of goodness, will and obligation and laid down some rational principles, then he considered tracing moral metaphysics through the categorical imperative. However, he failed to do so because his theory is based on pure idealism. Errors in the categorical imperative reveal the contradiction inherent in Kant's theory of motivation. Therefore, from the perspective of the categorical imperative, its content and logic, we can better understand Kant's moral thought.I. The categorical imperative and its testimony The categorical imperative is a basic concept of the Foundations of the Metaphysics of Morals. But what does the categorical imperative mean in Kant? According to Kant, everything in nature functions according to laws. Rational beings alone have the faculty of acting according to the conception of laws, that is to say also according to principles. In other words, the conception of an objective principle, insofar as it is obligatory for a will, is called a command (of reason), and the formula of the command is called an imperative. Kant divided imperatives into hypothetical imperative and categorical imperative. “All imperatives command either hypothetically or categorically. The first represented the practical necessity of possible action as a means of achieving something else that one wants (or perhaps desires). The categorical imperative would be one which represents an action as necessary in itself, without reference to any other end” (Kant 228). In saying this, Kant tells us...... middle of paper...... unreasonable. While motivation is a combination of will, hobby, interest, emotion, faith and ideal of the actor. In Foundations of the Metaphysics of Morals, Kant believes that the motivations of hobby and interest arise from the anticipation of achievement without any motivation of obligation, where only will and faith remain. However, pure motivation cannot be applied to explain the impetus for ethical behavior. Kant must therefore integrate metaphysics with the emotional, formerly excluded from ethics, in order to give a better explanation. Kant makes a gap between experience and ration, and he attempts to bridge it by limiting experience to ration and by bearing witness to it through experience. However, he failed. This is not only a problem that Kant must solve, but also the first problem that all thinkers must solve in order to construct a theory of pure motivation..