I think it would be a disaster. The extraterrestrials would probably be far in advance of us. The history of advanced races meeting more primitive people on this planet is not very happy, and they were the same species. I think we should keep our heads low.

心理学唯一有效的数据是可观察的行为。

心理现象最好从其功能角度来理解。

我不后悔做过的事，只后悔没做的事。