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Mathematics is the art of giving the same name to different things.
The sun is the soul of the universe, and the earth is its body.
It is one thing to show a man that he is in an error, and another to put him in possession of truth.
The more you know, the more you realize you don't know.
当你专注于做正确的事情,而不仅仅是把事情做对时,成功就会到来。
Education begins the gentleman, but reading, good company and reflection must finish him.
Happiness is not something ready-made. It comes from your own actions.