数学家是将咖啡转化为定理的装置。
A mathematician is a device for turning coffee into theorems.
埃尔德什差异问题让我着迷,因为它陈述起来如此简单,但含义却如此深刻。
预测未来最好的方法就是创造未来。
 寻求灵魂最安宁的状态。
We look at the world once, in childhood. The rest is memory.