As Harvard psychology professor Steven Pinker writes: The dogma that human nature does not exist, in the face of growing evidence from science and common sense that it does, has led to contempt among many scholars in the humanities for the concepts of evidence and truth. Worse, the doctrine of the blank slate often distorts science itself by making an extreme position—that culture alone determines behavior—seem moderate, and by making the moderate position—that behavior comes from an interaction of biology and culture—seem extreme.20

