We frequently change our minds – most often about trivial things like the evening’s dinner plans, but sometimes about ideas of great importance to us. For example, a pacifist might find that she agrees with her country’s involvement in a particular war, and this might, in turn, lead her to a more general view about the circumstances where going to war is justified. A career soldier might become a pacifist, perhaps after experiencing the terror and suffering of warfare at first hand.
Why...
