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.

Definitions belong to the definers, not the defined.

The true monument is not the building, but the memory it leaves behind.

That’s so right on, man! You said it all.

理解人类认知的关键在于理解符号是如何被操作的。

数学家研究纯数学不是因为它有用；他研究它是因为他喜欢它，他喜欢它是因为它美丽。