孔子曰：“生而知之者，上也；学而知之者，次也；困而学之，又其次也；困而不学，民斯为下矣。”
【译文】 孔子说：“生来就知道的，是上等人；学习后才知道的，是二等人；遇到困难才学习的，是三等人；遇到困难也不学习的，这就是下等人了。”
The world is almost peaceful when you stop trying to understand it.
The heart is a lonely hunter.
夜晚最黑暗时，星星最明亮。
We have a responsibility to use our science to improve lives, not just to make profits.
Psychology must be grounded in the facts of living experience.
没有人值得你流泪，值得让你这么做的人不会让你哭泣。
I shall die again and again to know that life is inexhaustible.
Technology can be our greatest ally in sustainable forest management.