Clearly there are limits to the uses of skepticism. There is some cost-benefit analysis which must be applied, and if the comfort, consolation and ho… - Carl Sagan

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Clearly there are limits to the uses of skepticism. There is some cost-benefit analysis which must be applied, and if the comfort, consolation and hope delivered by mysticism and superstition is high, and the dangers of belief comparatively low, should we not keep our misgivings to ourselves? But the issue is tricky. Imagine that you enter a big-city taxicab and the moment you get settled in, the driver begins a harangue about the supposed iniquities and inferiorities of another ethnic group. Is your best course to keep quiet, bearing in mind that silence conveys assent? Or is it your moral responsibility to argue with him, to express outrage, even to leave the cab — because you know that every silent assent will encourage him next time, and every vigorous dissent will cause him next time to think twice? Likewise, if we offer too much silent assent about mysticism and superstition — even when it seems to be doing a little good — we abet a general climate in which skepticism is considered impolite, science tiresome, and rigorous thinking somehow stuffy and inappropriate. Figuring out a prudent balance takes wisdom.