The method of psychology must be as exact as the methods of the natural sciences.
解释:国家垂危败亡,一定是因为任用了奸邪小人。
The most dangerous phrase in business is: "We've always done it this way."
预测未来的最好方法就是创造未来。
乐观是一种工具,你可以用它来实现你为自己设定的目标。
我对孤立的物体不感兴趣。我对物体之间的关系感兴趣。