世界上只有一种真正的英雄主义，那就是认清生活的真相后依然热爱生活。

In the pursuit of mathematical truth, we often find more questions than answers.

Don't watch the clock; do what it does. Keep going.

善不是出自内心的，不能保留；行为不能从自身辩明的，不能去做。善不是出自内心的，只能够勉强支撑一时，必然不能长久。所以也只能使伪善。