It takes a major unhappiness, a prolonged and bitter experience, to drive us away from loyalties once formed. And sometimes no amount of punishment can make us repudiate our loyalty.
Gordon AllportOpen-mindedness is considered to be a virtue. But, strictly speaking, it cannot occur. A new experience must be redacted into old categories. We cannot handle each event freshly in its own right. If we did so, of what use would past experience be?
Gordon Allport