What We Believe But Cannot Prove: Today's Leading Thinkers on Science in the Age of Certainty is a non-fiction book published by Harper Perennial and edited by literary agent John Brockman that includes an introduction by novelist Ian McEwan. The book consists of various responses to a question posed by the Edge Foundation, with answers as short as one sentence and as long as a few pages. Among the 107 published contributors are scientists and philosophers such as Richard Dawkins, Daniel C. Dennett, Jared Diamond, Rebecca Goldstein, Steven Pinker, Sir Martin Rees, and Craig Venter; as well as convicted sex offender Jeffrey Epstein. Some contributions weren't published, including those by Benoit Mandelbrot and computer scientist John McCarthy. However, their contributions are among 120 responses available online. Source: Wikipedia (en)