"Did Christians live according to their Religion, they would do nothing but what Truth, Righteousness, and Goodness do, according to their understanding and ability: and then one man would be a God unto another."

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If the ability to tell right from wrong should turn out to have anything to do with the ability to think, then we must be able to "demand" its exercise from every sane person, no matter how erudite or ignorant, intelligent or stupid, he may happen to be. Kant in this respect almost alone among the philosophers was much bothered by the common opinion that philosophy is only for the few, precisely because of its moral implications.

— Hannah Arendt