What is love except another name for the use of positive reinforcement? Or vice versa.

We say of some things that they can't be forgiven, or that we will never forgive ourselves. But we do—we do it all the time.

心理学的方法必须尽可能精确。

世界上没有压力，只有人们在想着有压力的想法。

Failure is not a bad thing. It's part of the process of learning and improving.