数学的本质在于它的自由。

The highest knowledge is the knowledge of the self.

"The true measure of a society’s progress is how it treats its most vulnerable members."

我认为最好的学习方法就是实践。

Life is too short to wake up with regrets. So love the people who treat you right, forget about the ones who don’t, and believe that everything happens for a reason. If you get a chance, take it. If it changes your life, let it. Nobody said life would be easy, they just promised it would be worth it.

Knowledge is power.

The key ingredients of happiness could not be material or aesthetic, but must always stubbornly psychological.