一个人越是激进，就越能完全地进入现实，从而更好地了解它，进而改变它。

——《在广州中国国民党恳亲大会的演说》（1923年10月15日）

The beauty of mathematics lies in its ability to describe the universe in the most elegant way possible.

"Un buen libro es aquel que te cambia, aunque sea un poco."

I'm the reason your teacher can't teach.

The poverty of our century is unlike that of any other. It is not, as poverty was before, the result of natural scarcity, but of a set of priorities imposed upon the rest of the world by the rich.

快乐的最好方式是跟随你的心。