Mathematics is the language with which God has written the universe.

Change starts with a vision, but it’s persistence that turns it into reality.

我们说的每一个字都是种在宇宙花园里的一颗种子。

The only real paradise is a paradise we have lost.

坚持志向就像心痛一样，心思全在痛处，哪有时间说闲话、管闲事。