The world is a complicated place, and I try to reflect that in my writing.

未来不是我们进入的，而是我们创造的。

Evolutionary psychology is not about what's unchangeable in human nature, but about what was adaptive in our ancestral environment.

Leadership is about making others better as a result of your presence and making sure that impact lasts in your absence.

——在遗嘱上签名后，对在病榻的同志们说，1925年3月11日

The African artist is not a representative but an individual voice.

Reinforcement is the central factor in the acquisition of new behavior patterns.