“At this point in time, when the prestige of science is at a low and even simple issues like climate change are mired in controversy, Carlo Rovelli gives us a necessary reflection on what science is, and where it comes from. Rovelli is a deeply original thinker, so it is not surprising that he has novel views on the important questions of the nature and origin of science.”—Lee Smolin, founding member and researcher at the Perimeter Institute for Theoretical Physics and author of The Trouble with Physics