It is a true observation of ancient writers, that as men are apt to be cast down by adversity, so they, are easily satiated with prosperity, and that joy and grief produce the same effects. For whenever men are not obliged by necessity to fight they fight from ambition, which is so powerful a passion in the human breast that however high we reach we are never satisfied.
Niccolo MachiavelliWe have not seen great things done in our time except by those who have been considered mean; the rest have failed.
Niccolo MachiavelliAll the States and Governments by which men are or ever have been ruled, have been and are either Republics or Princedoms.
Niccolo Machiavelli