It must be realized that there is nothing more difficult to plan,
more uncertain of success, or more dangerous to manage than the
establishment of a new order .... for he who introduces it makes
enemies of all those who derived advantage from the old order and
finds but lukewarm defenders among those who stand to gain from the
new one. Such a lukewarm attitude grows partly out of fear of the
adversaries, who have the law on their side, and partly from the
incredulity of men in general, who actually have no faith in new
things until they have been proved by experience.
Niccolo Machiavelli, 1513
