心理学研究的正确方向是行为的预测和控制。
The proper study of psychology is the prediction and control of behavior.
The best way to make people happy is to make them laugh.
Happiness is not a right; it is a rare and precious exception.
阅读未见过的书,如结识好朋友,情意和洽;重读已看过的书,如老朋友相晤,叙旧联谊。
The audience completes the artwork.