The best biographies are those that make the reader feel they have met the subject in person.

The chess-board is the world; the pieces are the phenomena of the universe; the rules of the game are what we call the laws of Nature.  

一个人重要的是他谈论什么、而不是他赞同或不赞同什么。

“原则”是“偏见”的另个名称。