过去永远不会死去。它甚至还没有过去。
The past is never dead. It's not even past.
科学是关于后果的知识，以及一个事实对另一个事实的依赖。
With a library you are free, not confined by temporary political climates. It is the most democratic of institutions because no one - but no one at all - can tell you what to read and when and how.
意见正确而不被采纳，意见错误而不被废止，有功的人得不到奖赏，有罪的人得不到惩治，这样能够治理好百姓国家的，从来没有过。
历史学家是一个向后看的先知。