勇气不是没有恐惧，而是战胜恐惧。

"Experience is simply the name we give our mistakes."

写作是一种乐观的行为。如果你觉得它不重要，你就不会费心去做。

In computational complexity, we are not just dealing with the limits of what we can compute, but also with the limits of what we can prove.

The most radical architecture is often the simplest.

翻译：事情的难易不在于规模大小，而在于是否抓准时机，顺势而为则事半功倍，逆势而行则事倍功半。