The best way to predict the future is to create it.

The only thing that counts is what cannot be explained.

痛苦的秘诀在于有空闲去烦恼自己是否幸福。

The time which we have at our disposal every day is elastic; the passions that we feel expand it, those that we inspire contract it.

数学不是关于数字、方程、计算或算法：它是关于理解的。