From what I've seen, you either get grounded in that kind of positive thinking early on in life or you don't. Establishing priorities and using your time well aren't things you can pick up at the Harvard Business School. Formal learning can teach you a great deal, but many of the essential skills in life are the ones you have to develop on your own.

Iacocca: An Autobiography (ed. Bantam, 2011) - ISBN: 9780307788689