女人只能在他们之间没有激情的情况下成为男人的朋友。

农业中唯一不变的就是变化——拥抱它吧。

The world is not run from where he thinks. Not from castle walls, but from countinghouses, not by the call of the bugle but by the click of the abacus, not by the grate and click of the broadsword but by the scrape of the pen.

数学的本质在于它的自由。

我不是那种会让对尊重的热爱减少的人。