Every psychological phenomenon is a function of the whole organism adapting to its environment.

The best time to plant a tree was twenty years ago. The second best time is now.

人真正的祖国是他的童年。

The only way to be happy is to love what you do.

永远愿意学习，因为你停止学习的那一刻就是你停止成长的那一刻。

数百万人看到苹果落下，但牛顿问了为什么。