I found this quotation on the "Wisdom of Will Durant" section of this site:
"It is an error to suppose that books have no influence; it is a slow influence, like flowing water carving out a canyon, but it tells more and more with every year; and no one can pass an hour a day in the society of sages and heroes without being lifted up a notch or two by the company he has kept."
I am sure I have read it in one of his books before, but I can't remember which one. Can someone tell me where this comes from, exactly?
