The beauty of mathematics is that it allows us to abstract away the complexities of the real world and focus on the underlying principles.

音乐有治愈言语无法触及的伤痛的力量。

你不能以貌取人，但你可以通过第一章来判断一本书。

It’s not supposed to be easy. Anyone who finds it easy is stupid.

The safety of the state is the highest law.

研究中的耐心不是被动的，而是对真理的积极追求。