书籍是最安静、最恒久的朋友；它们是最易接近、最睿智的顾问，也是最耐心的老师。

The public have an insatiable curiosity to know everything, except what is worth knowing.

"I’m a very positive thinker, and I think that is what helps me the most in difficult moments."

"The role of business is to produce goods and services that people value more highly than their cost, and to do so while consuming as few resources as possible."