Exile and ostracization, or worse, have long been means by which societies punish those who say the wrong things, present novel ideas, and offer dissenting opinions. This instinct to disdain those we disagree with, and its twin instinct to “keep a lid on it,” even if we do have different ideas, is rooted in a fear of freedom, for others and ourselves, and can only lead to totalitarian societies and groupthink if we can’t collectively find the courage to overcome it.