Ronald Dworkin on Posner’s doubts about the persuasiveness of moral arguments
Posner declares, as a matter of a priori psychological dogma, that moral arguments, no matter how sound or powerful, never convince anyone not already convinced anyway […] no doubt many people are never moved by the logic of a moral argument, even once in their lives, but it is absurd to suppose that no one ever is.
The most irritating section of the book is a long piece of psychobabble explaining why so many academics supported Clinton: Posner thinks they instinctively protected him as the enemy of their own enemies. He prefers cynical to simple explanations, but in this case a simple explanation is more persuasive. They were committed, not to Clinton, but to the Constitution.