NP-completeness is not just a theoretical curiosity; it has profound implications for practical computing.

解释：上等的医生能够医治国家，次一等的只会医治病人，这本来就是医生的职守。

"Silence is not the absence of something, but the presence of everything."

I’m not a guy that’s going to let my love for my passion down.

别难过……世界上有许多人还不知道他们到底是谁或什么。