[T]here is nothing more difficult to carry out,
nor more doubtful of success,
nor more dangerous to handle,
than to initiate a new order of things.
For the reformer has enemies in all those
who profit by the old order, and
only lukewarm defenders in all those
who would profit by the new order.
-- Niccolo Machiavelli
(1469-1527) Italian Statesman and Political Philosopher.