Don't recall how I got this, but apparently thought it would make an interesting nightstand book to maybe help me get to sleep. And it certainly is an interesting idea, with important questions to consider and a very broad range of responses.
But Sallis really would have benefited from a better selection of voices. While some of these are obvious choices - the Dalai Lama, Nelson Mandela, Shimon Peres - many more are just Hollywood knuckleheads, so that it's less "who would be the best people to hear from?" and more "who do I know that would be willing to do this?," (Sallis was John Huston's longtime partner). So while I'll cut Bono or even Sharon Stone some slack as maybe having something interesting to say, for many of the others I was like, "Ed Begley Jr.?* Really?"
So 4 stars for concept, but only 2+ for execution, averaging out to a respectably "eh" 3.
* The list also includes such other questionable choices as Harry Dean Stanton, Sophia Loren, Anjeiica Huston (stepdaughter), Jack Nicholson (stepdaughter's friend), guitarist Steve Vai (whose music I love, but...?), several Italian art/film/fashion people, etc.