a) Freedom, according to Immanuel Kant, is the capacity to act according to a universal law that one gives to oneself. This is known as the "categorical imperative." For Kant, freedom is not about acting according to one's whims or emotions but is about acting in accordance with rational principles that can be universally applied.
Confucius's requisites on propriety (li) involve a set of social norms and rituals that organize behavior and relationships. While on the surface, this may seem to impose constraints on individual freedom, from a Kantian perspective, propriety could be seen as a series of practices that reflect a universal moral law within the context of a community. Confucius's propriety is not arbitrary but is based on the idea of harmony and respect, which can be seen as analogous to Kant's idea of acting according to a universal moral law.
Confucius's idea of propriety is comparable to Kant's idea of imperative duty in that both involve a sense of obligation to act in a certain way, not out of desire or emotion, but out of a sense of what is morally right. Both are about submitting one's behavior to a higher principle: for Kant, it is the moral law; for Confucius, it is the propriety that maintains social harmony.
b) Kant defines human "rational capacity" as the ability to understand and act according to moral laws through reason. Rationality, for Kant, is the faculty that allows humans to discern the moral law and to act autonomously, free from the constraints of empirical desires and inclinations.
From this perspective, Confucianism can be seen as a form of rationality that emphasizes the importance of social order and harmony. Confucian rationality is about understanding one's place in society and acting in ways that fulfill social roles and responsibilities. It is a rationality that is deeply embedded in the social and relational context.
Western rationality, as exemplified by Kant, tends to focus on abstract principles and universalizable moral laws. It is more individualistic and emphasizes the autonomy of the individual's reason. Western rationality seeks to uncover objective truths that are independent of cultural or social contexts.
Confucian rationality, on the other hand, is more contextually based and relational. It is concerned with the practical application of moral principles within the specific context of social relationships. While Western rationality may seek to universalize moral principles, Confucian rationality acknowledges the importance of particular relationships and the social context in determining what is morally right.
In terms of similarity, both Western and Confucian rationalities aim at guiding human behavior towards moral ends. However, they differ in their approach: Western rationality is more abstract and universal, while Confucian rationality is more particular and relational.
Regarding the suggestion that Confucius is in line with inhumanity as proposed by Bertrand Russell, it is important to note that Confucianism places a strong emphasis on humaneness (ren) and the cultivation of moral character. The rituals and propriety in Confucianism are not intended to suppress human emotion but to channel them in ways that are beneficial to both the individual and society. Therefore, it would be more accurate to say that Confucius's teachings are a form of social and moral philosophy that seeks to harmonize human behavior with a deeper understanding of what it means to be a virtuous person within a community.