心理学关注心理生活的“是什么”和“怎么样”，而非“为什么”。
Psychology is concerned with the what and how of mental life, not the why.
最危险的事情就是满足于过去的成功。
The time which we have at our disposal every day is elastic; the passions that we feel expand it, those that we inspire contract it.
预测未来最好的方法就是创造未来。
I'm not going to let anyone take away my happiness.
我是那个让我自己快乐的人。
Concerning the gods, I have no means of knowing whether they exist or not or of what sort they may be, because of the obscurity of the subject, and the brevity of human life.
