Kant’s starting point is to show that rational human beings are bounded by morality. At this point, it should be known that what the meaning of morality is. Morality is something that human beings care about. They care about both morality and moral judgement. There are different types of moral judgements that they have. While some judgements are about the principles, for example, an abstract principle such as maximizing happiness, they have also judgements about the particular cases such as how they should behave in certain situations. The judgements are like from the sort of abstract to concrete. Moreover, in the Metaphysics of the Morals, Kant gives some sort of moral argument for freedom. According to the argument of the reality of freedom,