And many writers have imagined for themselves republics and principalities that have never been seen or known to exist in reality; for there is such a gap between how one lives and how one ought to live that anyone who abandons what is done for what ought to be done learns his ruin rather than his preservation: for a man who wishes to profess goodness at all times will come to ruin among so many who are not good. -- Niccolo Machiavelli