Christianity has taken the part of all the weak, the low, the botched; it has made an ideal out of antagonism to all the self preservative instincts of sound life; it has corrupted even the faculties of those natures that are intellectually most vigorous, by representing the highest intellectual values as sinful, as misleading, as full of temptation.
Friedrich NietzscheOne sticks to an opinion because he prides himself on having come to it on his own, and another because he has taken great pains to learn it and is proud to have grasped it: and so both do so out of vanity.
Friedrich Nietzsche