自然的统一性不是一个事实，而是一项任务。

Psychology should focus on how the mind functions to solve practical problems, not just its abstract structure.

"History is not the past. It is the method we have evolved of organizing our ignorance of the past."

不可以同井底的青蛙谈论大海的辽阔，因为有空间的拘束；不可以同夏天的小虫谈论冰冻的寒冷，因为有时节的局限。

Leadership is about making tough decisions today that will define tomorrow's opportunities.

你不能仅仅因为情况不理想就放弃某人。