The way in which men produce their means of subsistence depends first of all on the nature of the actual means they find in existence and have to reproduce.

数学家是能在定理之间找到类比的人；更好的数学家是能在证明之间看到类比的人；而最好的数学家是能注意到理论之间类比的人。

我不是神，我只是一个唱歌的家伙。

I don't want to be a star. I want to be a legend.

债券市场是世界上最重要的市场。