 I can see in my mind's eye the twinkly grin of the late German physicist Hans-Peter Dürer, who a decade ago laid it out to me simply, Frankie, in life there are no parts, only participants. Got it, Hans-Peter, and I've never forgotten, and it is the core truth of our being. The book is The 50th Anniversary Edition of Diet for a Small Planet by Francis Moore Lappe. Diet for a Small Planet.