Behavior is determined by the interaction of drive and habit strength.

If you believe that every life has equal value, it's revolting to learn that some lives are seen as worth saving and others are not. We said to ourselves: "This can't be true. But if it is true, it deserves to be the priority of our giving."

The world is a stage, but the play is badly cast.

君子给人的印象有三种变化：远看庄重威严，接触则温和可亲，听讲话则严肃不苟。

A mathematician's work is mostly a solitary pursuit, but it builds on the work of many others.

Life is too short to be living somebody else's dream.