I found this quote on the home page of  Susan Wise Bauer,  the author of some incredible  books of world history.  The author of the quote,   Barbara Tuchman,  is another favorite.  I’m currently reading Bauer’s The History of the Ancient World –  just started – it’s interseitng but uses the Bible as a primary source in a way.  That said,  I still agree with Tuckman’s wonderful quote.