一个问题如果在计算机上可以快速解决，那么它属于P类问题；如果一个解可以快速验证，那么它属于NP类问题。
The concept of nondeterminism in computation is one of the most important ideas in computer science.
信念有创造的力量，也有毁灭的力量。
建筑不应该大喊大叫，而应该轻声细语。
真理不是为所有人准备的，而是为那些寻求它的人准备的。
The true value of a forest cannot be measured in board feet alone.
My inspiration comes from life and also from imagination.
"You can't stop the future, you can't rewind the past, the only way to learn the secret is to press play."