有了图书馆，你是自由的，不受暂时的政治气候的限制。它是最民主的机构，因为没有人——绝对没有人——可以告诉你该读什么，什么时候读，怎么读。

A man can no more diminish God's glory by refusing to worship Him than a lunatic can put out the sun by scribbling the word 'darkness' on the walls of his cell.

The greatest discovery of my generation is that a human being can alter his life by altering his attitudes.

当没有人相信你时，你必须相信自己。

数学是一门艺术，作为艺术家，你必须对自己诚实。