To be yourself in a world that is constantly trying to make you something else is the greatest accomplishment.

Psychology is the science of mental life in its adaptive relations.

天下很多所谓可以做的事情，未必都是可以做的啊！ 

勇气并不总是咆哮。有时勇气是一天结束时那个轻声说"明天我再试一次"的声音。