Writing is a way of life, a way of understanding the world and of understanding ourselves.
自然界没有废物——每样东西都是其他事物的养分。
The biggest risk is not taking any risk. In a world that's changing quickly, the only strategy that is guaranteed to fail is not taking risks.
Great deeds are usually wrought at great risks.
People, even more than things, have to be restored, renewed, revived, reclaimed, and redeemed; never throw out anyone.
Every problem in NP can be reduced to the satisfiability problem, which is the cornerstone of computational complexity theory.