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 Machiavelli(A ruler) cannot and should not keep his word when to do so would go against his interests or when the reason he pledged it no longer holds.
Niccolo MachiavelliWe have not seen great things done in our time except by those who have been considered mean; the rest have failed.
Niccolo MachiavelliYou do not know the unfathomable cowardice of humanity...servile in the face of force, pitiless in the face of weakness, implacable before blunders, indulgent before crimes...and patient to the point of martyrdom before all the violences of bold despotism.
Niccolo MachiavelliOne can say this in general of men: they are ungrateful, disloyal, insincere and deceitful, timid of danger and avid of profit...Love is a bond of obligation that these miserable creatures break whenever it suits them to do so; but fear holds them fast by a dread of punishment that never passes.
Niccolo Machiavelli