They are not monuments, but footprints. A monument only says, 'At least I got this far,' while a footprint says, 'This is where I was when I moved again.'

Leadership is about creating more leaders, not more followers.

科学是关于在看似无关的现象之间建立联系。

研究心灵就是研究适应行为；每个思想都是生活的工具。