It Must Be Remembered That There Is Nothing More Difficult To Plan, More
Doubtful Of Success, Nor More Dangerous To Manage, Than The Creation Of
A New System.
It must be remembered that there is nothing more difficult to plan, more
doubtful of success, nor more dangerous to manage, than the creation of
a new system. For the initiator has the emnity of all who would profit
by the preservation of the old institutions and merely lukewarm defenders
in those who would gain by the new ones.
-- Niccolo Machiavelli, 1513