成功者与其他人之间的区别不是缺乏力量，也不是缺乏知识，而是缺乏意志。

人类的创作犹如自然的创作一样，真正地说起来，值得注意的主要是动机。

能者做事，不能者教书。

写作是我存在于世界的方式。

"Man, unlike any other thing organic or inorganic in the universe, grows beyond his work, walks up the stairs of his concepts, emerges ahead of his accomplishments."

I don't think that everyone should become a mathematician, but I do believe that many students don't give mathematics a real chance.

比你的竞争对手更好地控制你的开支。这是你总能找到竞争优势的地方。