The concept of NP-completeness has provided a powerful tool for understanding the complexity of problems.

When somebody hits you, hit back harder.

I'm tough, I'm ambitious, and I know exactly what I want. If that makes me a bitch, okay.

我不相信写作障碍，我只相信写作懒惰。

History is about to crack wide open. Millennium approaches.

科学的进步不是一条直线，而是一系列曲折，常常需要回溯步骤以获得更好的立足点。