"It ought to be
remembered that there is nothing more difficult to take in hand, more
perilous to conduct, or more uncertain in its success, than to take
the lead in the introduction of a new order of things. Because the innovator
has for enemies all those who have done well under the old conditions,
and lukewarm defenders in those who may do well under the new. This
coolness arises partly from fear of the opponents, who have the laws
on their side, and partly from the incredulity of men, who do not readily
believe in new things until they have had a long experience of them."