真正的英雄是那些即使害怕也坚持战斗的人。

I think the best thing you can do is to be true to yourself and to be honest with yourself.

In the context of computational learning, the concept of 'probably approximately correct' (PAC) learning provides a framework for understanding the efficiency and feasibility of learning algorithms.

解释：愚者最大的弊病，就是误把聪明人当糊涂人糊弄。

A building should be readable like a book.