If your art doesn’t challenge you, it won’t challenge anyone else.

我不是为了钱而跑。我是为了对这项运动的热爱而跑。

Happiness in this world, when it comes, comes incidentally. Make it the objet of pursuit, and it leads us a wild-goose chase, and is never attained. Follow some other object, and very possibly we may find that we have cought happiness without dreaming of it.

如果我们说不同的语言，我们将感知到稍微不同的世界。

我们必须接受有限的失望，但永远不要失去无限的希望。

Sometimes the most profound mathematics comes from playing with simple ideas until they reveal their hidden complexity.