The whole history of civilization is strewn with creeds and institutions which were invaluable at first, and deadly afterwards
Walter BagehotOne of the greatest pains to human nature is the pain of a new idea. It...makes you think that after all, your favorite notions may be wrong, your firmest beliefs ill-founded....Naturally, therefore, common men hate a new idea, and are disposed more or less to ill-treat the original man who brings it.
Walter Bagehot