Life is pleasant. Death is peaceful. It's the transition that's troublesome.
真相往往不止一个。
现在数学家面临的最大问题可能是黎曼假设。
知道事情做不成于是就听之任之,这是聪明人的方法;知道事情做不成而竭尽全力的,这是忠臣孝子之心。
Probability theory is nothing but common sense reduced to calculation.