Gray is a Professor in Psychology and Neuroscience at the University of North Carolina at Chapel Hill, where he directs the Deepest Beliefs Lab and the Center for the Science of Moral Understanding.

“Everyone is entitled to his own opinion, but not his own facts.” This saying has become one of the most overused phrases of the Trump era. It has a seductive appeal in a partisan era. It’s reassuring ...

Forbes contributors publish independent expert analyses and insights. Bryce Hoffman writes about leadership, strategy, and decision making. Do you know the difference between a fact and opinion? If so ...