No man really knows about other human beings. The best he can do is to suppose that they are like himself.
Never stop learning. The moment you think you know it all is the moment you fail.
No arts; no letters; no society; and which is worst of all, continual fear, and danger of violent death; and the life of man, solitary, poor, nasty, brutish, and short.
怎堪忍受花开满枝,反而引发了两地相思。