The study of cognition is the study of how human beings understand their world.

大萧条是二十世纪的决定性宏观经济事件，它引发了对宏观经济理论和政策的根本性重新思考。

The cause of light is not in the colors， but in the light.

亲兄弟不和睦，家产像瓜一样被切开；士大夫爱钱，不读书却追逐钱财。