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The true meaning of life is to plant trees, under whose shade you do not expect to sit.

我不想出名，我想變得偉大。

言語是內在世界和外在世界之間的橋梁。

"To write is to remember, but to remember is also to forget."

Mathematics is not a careful march down a well-cleared highway, but a journey into a strange wilderness, where the explorers often get lost.

名稱沒有本來就合適的，而是由人們共同約定來命名的，約定俗成就是合適的，與約定不同的就是不合適的。