The emotional study of traditional western philosophy generally contains four aspects: prototype analysis, element analysis, dimensional analysis, and value analysis. The four aspects can provide an analytical framework for understanding Kant's emotional theory, and within this framework, we can understand Kant's views on passion and apathy, and provide a possibility to link this calm state of mind with pleasure. Kant's moral philosophy denies the role of passion and advocates an attitude of "moral apathy". But Kant's apathy is not moral indifference to others, but a kind of emotional calm. Emotional calm is not a kind of lifeless without waves. Its background is a happy state of mind combined with the release and promotion of vitality, and contains the power of morality. This state of mind can be compatible with Kant's multiple feelings. The feeling of respect, moral pleasure, practical love, and free sympathy constitute a pedigree of calm emotions in Kant's moral philosophy. Emotional calm is essentially the representation of a person's moral character and inner freedom. Therefore, it is not a phenomenon that a person with moral character accidentally displays, but an essential phenomenon. This kind of calm, which originates from moral character, is an ideal state pursued by Kant's moral philosophy and the ultimate purport of Kant's moral psychology.
