"The study of computational complexity teaches us that some problems are inherently difficult, no matter how clever our algorithms are."
计算复杂性的研究告诉我们，有些问题本质上是困难的，无论我们的算法多么聪明。
每本书都是一次前往未知世界的旅行，充满了可能性。
Don’t loan money to a friend unless you are ready to make it a gift.
I'm a problem that'll never be solved.
The world is so beautiful and regretful, you and I are all lone travelers from afar, constantly walking, regardless of everything, crying, laughing, lingering in the world, just to make this trip worthwhile.
Success is a team effort; no one achieves greatness alone.