“Disgust is a very powerful tool for bringing about crowd violence. If a group can be dehumanized and made into the Other, the 'them,' to treat that group horribly is made much easier.”

American academic, neuroscientist, and primatologist

Robert Morris Sapolsky is an American academic, neuroscientist, and primatologist. He is the John A. and Cynthia Fry Gunn Professor at Stanford University and a professor of biology, neurology, and neurosurgery. His work focuses on neuroendocrinology, especially the biology of stress. He is also a research associate with the National Museums of Kenya, reflecting a career that links laboratory science with long-term study of primates and their behavior.