Love is the only thing that grows when you give it away.

The limits of sense are not to be determined by the narrow bounds of our own capacities.

To be without some of the things you want is an indispensable part of happiness.

Intolerance of ambiguity is the mark of an authoritarian personality.

If I have seen further, it is by standing on the shoulders of giants.

Science should serve humanity, not just curiosity.

"Just living is not enough... one must have sunshine, freedom, and a little flower."

一滴墨水，可以唤起千百万人的思想。

效法的人如果不仁义，我们就不可以效法他。治理国家，管理人民应当要以人为本，用仁义管理世俗。