What libraries give you is all three tenses - the past tense - the present tense in which we live and the future that we can only imagine. These places have teachers who are living and dead and we are lucky to have them. If I sit here and read Aristotle, he is speaking to me across a thousand years - more than a thousand years. That sense that I am in the company of the great greatest people who ever lived is a humbling experience but a liberating experience.