The definition of a good mathematical problem is the mathematics it generates rather than the problem itself.

Stories are the way we understand the world, and the way we understand ourselves.

"To be hopeful in bad times is not just foolishly romantic. It is based on the fact that human history is a history not only of cruelty, but also of compassion, sacrifice, courage, kindness."

所以君子严于律己、宽以待人，而平庸的人却宽以待己、严于律人。

Hope for the ocean begins with the courage to change.

哲学的本质在于其质疑未被质疑的事物的能力。