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。

"You do not just wake up and become the butterfly—growth is a process."

真理不仅仅是逻辑或孤立事实的问题，而是情境的结构特征问题。

The teacher's task is not to implant facts but to place the subject to be learned in front of the learner and, through sympathy, emotion, imagination, and patience, to awaken in the learner the restless drive for answers and insights which enlarge the personal life.

遇事要再三考虑，慎重行事，第一重要的是不要自欺欺人。

我们必须停止空谈改变，开始行动。

Prophesying was the only human art that couldn't be improved by practice.