Third ThoughtsThe phrase 'public intellectual' is much bandied about. Just a few real heavyweights in the world merit the title, and Steven Weinberg is preeminent among them." Richard Dawkins Weinberg has a knack for capturing a complex concept in a succinct, unforgettable image. One of the smartest and most diligent scientists around." Nature In this wise and wide ranging meditation, one of the most captivating science communicators of our time challenges us to