我写作是为了记住，为了不忘记。

Love all，trust a few ,do wrong to none.

The concept of computational complexity is not just about how fast we can compute, but also about understanding the limits of what can be computed.

群众是残忍的，但个人是善良的。

历史不是过去。历史就是现在。我们随身携带着历史。