君主是臣子的纲常，父亲是儿子的纲常，丈夫是妻子的纲常。

The concept of purpose has no place in a scientific account of behavior.

You have to be willing to take risks, because the biggest risk is not taking any.

在科学中最令人兴奋的短语，预示着新发现的，不是“我发现了！”，而是“这有点奇怪……”