Theorems are eternal; their proofs are ephemeral.

爱是一种极其困难的领悟：除了自己之外还有其他真实存在。

我训练，我专注，我准备，然后我相信我的训练。

「释义」：坚守志向要像心痛发作，全神贯注在痛处，哪还有心思闲聊多事？

群众是残忍的，但个人是善良的。

The business of education is not to make the young perfect in any one of the sciences, but so to open and dispose their minds as may make them capable of any, when they shall apply themselves to it.