没有欢乐的生活就像没有驿站的漫长旅程。

过去从未死去，它甚至还未过去。

人类的思想和行为是自然的一部分，因此可以通过自然科学的方法来研究。

The secret of change is to focus all of your energy not on fighting the old, but on building the new.

When something terrible happens people wake up.

The concept of loss aversion explains why we often prefer avoiding losses over acquiring gains.