The iron rule of nature is: you get what you reward for. If you want ants to come, you put sugar on the floor.

To be human is to be in conflict with oneself.

心理学必须是纯粹实验性和分析性的。

The most dangerous thing is to do nothing.

True leaders create more leaders, not more followers.

我喜欢狗。你总是知道狗在想什么。它有四种情绪。快乐、悲伤、生气和专注。