The core of the orthodoxy consists of three dogmas:- Gender is a social construct.- Race is a social construct.- Class is a function of privilege. The problem is that all three dogmas are half-truths. They have stifled progress in understanding the rich texture that biology adds to our understanding of the social, political, and economic worlds we live in.It is not a story to be feared. "There are no monsters in the closet," Murray writes, "no dread doors we must fear opening." But it is a story that needs telling. Human Diversity does so without sensationalism, drawing on the most authoritative scientific findings, celebrating both our many differences and our common humanity.