You cannot always control what goes on outside, but you can always control what goes on inside.
What we learn from history is that people don't learn from history.
The beauty of a structure lies in its logic.
有一个你无法解决的问题总是好的。这意味着你有事情要做。
The most exciting phrase to hear in science, the one that heralds new discoveries, is not 'Eureka!' but 'That's funny...'
