You don't learn to walk by following rules. You learn by doing, and by falling over.

数学的真正力量在于它能够揭示支配宇宙的隐藏模式和结构。

此一时，彼一时也，怎么能一概而论呢？

男人害怕女人会嘲笑他们。女人害怕男人会杀了她们。

我不是救世主，我是罪人。

The best ideas often come from those who work closest to the problem.

用谦虚培养自己的品质，用修德提高自己的思想，用仁爱对待天下万物，用道德教诲子孙后代。