" Why is it that a common, safe, and important task is so feared by so many people? In Iconoclast, Gregory Berns uses his experience running a neuroscience research lab to explain the biological underpinnings of the resistance. In fact, public speaking is the perfect petri dish for exposing what makes us tick. It turns out that the three biological factors that drive job performance and innovation are social intelligence, fear response, and perception. "
― Seth Godin , Linchpin: Are You Indispensable?