Theologians may quarrel, but the mystics of the world speak the same language.

The beginning is the most important part of the work.

To understand the universe, you must understand the language in which it is written, and that language is mathematics.

There is only one boss. The customer. And he can fire everybody in the company from the chairman on down, simply by spending his money somewhere else.

我不是一个完美的人。我从未声称自己是。

乐观主义者认为这是所有可能世界中最好的一个。悲观主义者则担心这是真的。