在数学中，提出问题的艺术必须比解决问题更有价值。

因为，一个人可以同时是忠实的，又是懒惰的。

Quality is the best business plan.

我不是一个女商人，我就是生意，伙计！#

Simplicity does not precede complexity, but follows it.

The price of apathy towards public affairs is to be ruled by evil men.

The method of psychology must be as exact as the methods of the natural sciences.

写作就是将灵魂刻成文字，希望有人能认出它的形状。