You are too generous to trifle with me. If your feelings are still what they were last April, tell me so at once. My affections and wishes are unchanged, but one word from you will silence me on this subject forever.

一个数学家的真正价值在于他们留下的问题。

This was a very short visit, but it plunged the little prince into deep dejection.

There is an awful lot you can tell about a person by their shoes. Where they're going. Where they've been.

证明的严谨性将数学与所有其他科学区分开来。

最大的财富是健康。

预测未来的最好方法就是发明它。