Chip Heath and Dan Heath, Switch: How to Change Things When Change Is Hard (New
York: Broadway Books, 2010), 27-32.
Benjamin Franklin, The Autobiography of Benjamin Franklin (Philadelphia: Lippincott,
1868). Hat tip to Rich Mallon-Day for pointing me to this quote.
Bill Hathaway, “Mind-Body Connection Is a Touchy Subject”, Futurity, June 25, 2010,
www.futurity.org/health-medicine/mind-body-connection-is-a-touchy-subject.