The deepest problems in mathematics often arise from the simplest questions.
我们能用语言描述的现实从来不是现实本身。
Change is hard, but it is necessary for progress.
宇宙不仅比我们想象的更奇怪,而且比我们能够想象的还要奇怪。
The longer the night lasts, the more our dreams will be.