QUOTE : Discrimination as an explanation of economic and social disparities may have a similar emotional appeal for many. But we can at least try to treat these and other theories as testable hypotheses. The historic consequences of treating particular beliefs as sacred dogmas, beyond the reach of evidence or logic, should be enough to dissuade us from going down that road again—despite how exciting or emotionally satisfying political dogmas and the crusades resulting from those dogmas can be, or how convenient in sparing us the drudgery and discomfort of having to think through our own beliefs or test them against facts.