"To love is to risk being hurt, but not to love is to guarantee a life unlived."

The past is a mirror in which we see ourselves reflected.

数学是上帝用来书写宇宙的语言。

世界的问题在于愚蠢的人自以为是，而聪明的人充满怀疑。

追求幸福与追求快乐不同；幸福是灵魂的一种状态，而非身体的感受。