1. Human beings, in fact, all rational beings, exist because they are an end in themselves, not just tools for the use of this or that will. ——Kant

2. There is no so-called unswerving determination to do good or evil in human nature, except on the guillotine. ——Nah Hawthorne

3. Human wildness is no different from the various beasts in the oak forest. ——Ben Jonson

4. Human arrogance is a mentality that can only be discovered in retrospect, and its existence can only be determined after being punished. ——Nabokov

5. Human beings are the ultimate goal of creation in the world, because human beings are the only unique existence in the world that can form the concept of purpose, and can create from a large number of purposes. Among the things formed, with the help of his reason, a system of purposes is formed. ——Kant