A mathematician is a device for turning coffee into theorems.
数学家是将咖啡转化为定理的装置。
When you're depressed, It always helps to lean your head on your arm. Arms like to feel useful.
行义不是为了躲避诋毁、获得荣誉,如果离开是符合道义的,背上狂妄的名声又有什么影响呢?
自然选择是已知唯一能够构建功能复杂性的自然过程。