世界是一切事实的总和。

心有自己的记忆，而这种记忆并不总是与大脑商量。

译文：从古至今英雄人物总是要经历磨难才能成就大业，而娇生惯养之辈总是缺少气概难以成就伟业。赏析：生于忧患，死于安乐。一个人要想成功必定要经历很多痛苦和艰难，如果人太安逸和舒适了，就会丧失斗志。

What I think I've been talking about really is success and failure. And one of the interesting things about success is that we think we know what it means. If I said that there's somebody behind the screen who's very successful, certain ideas would immediately come to mind. You'd think that person might have made a lot of money, achieved renown in some field. My own theory of success -- I'm somebody who's very interested in success, I really want to be successful, always thinking, how can I be more successful? But as I get older, I'm also very nuanced about what that word "success" might mean.

商业中最危险的一句话是"我们一直都是这么做的"。