当你为爱情而钓鱼时，要用你的心当作饵，而不是用你的脑筋。

Man is not logical and his intellectual history is a record of mental reserves and compromises. He hangs on to what he can in his old beliefs even when he is compelled to surrender their logical basis.

模型的目的是足够简单以便理解和使用，但又足够复杂以捕捉系统的基本特征。

To preserve is to transform.

我不会专注于我所面对的困难，我会专注于我的目标，并尽量忽略其他事情。