It is not the creation of wealth that is wrong, but the love of money for its own sake.

追求数学知识是一段永无止境的旅程。

让我来告诉你什么叫真正的爱。真正的爱就是盲目奉献，彻底自卑，完全服从，十足信任，不顾自己并且无视整个世界，把整颗心、整个灵魂都交给那个深深伤害你的人。

The world is not dialectical—it is sworn to extremes, not to equilibrium, sworn to radical antagonism, not to reconciliation or synthesis.

If you're not stubborn， you'll give up on experiments too soon. And if you're not flexible， you'll pound your head against the wall and you won't see a different solution to a problem you're trying to solve.