Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.

我对这场战争了解的不多，但我知道美国的很多年轻人都参与了这场战争。

我对漂亮和可爱不感兴趣。我对强烈和情感感兴趣。

"The most beautiful thing we can experience is the mysterious. It is the source of all true art and science."

处于逆境，思想要开拓放达，奋发图强；处于顺境，思想要警觉收敛，约束自身。

You have to be willing to fail to create something original.