我这一代人最伟大的发现是，一个人可以通过改变态度来改变他的生活。
The greatest discovery of my generation is that a human being can alter his life by altering his attitudes.
The key to trading success is emotional discipline.
没有内容的思想是空洞的，没有概念的直觉是盲目的。
"One way of looking at speech is to say that it is a constant stratagem to cover nakedness."