The essence of computational complexity is to understand the limits of what can be computed efficiently.

唯一把我们和动物区分开的是我们装饰自己的能力。

Music is my life and my life is music.

Only he who desires is amiable and not he who is satiated.

文章的妙处在于，一句话能说尽天下的道理，片言能概括万物的情状。