The Prince

by Niccolò Machiavelli

Therefore, my son, if you wish to please me, and to bring success and honour to yourself, do right and study, because others will help you if you help yourself.”

Upon this, one has to remark that men ought either to be well treated or crushed, because they can avenge themselves of lighter injuries, of more serious ones they cannot; therefore the injury that is to be done to a man ought to be of such a kind that one does not stand in fear of revenge.

From this a general rule is drawn which never or rarely fails: that he who is the cause of another becoming powerful is ruined; because that predominancy has been brought about either by astuteness or else by force, and both are distrusted by him who has been raised to power.

Those may be called properly used, if of evil it is possible to speak well, that are applied at one blow and are necessary to one's security, and that are not persisted in afterwards unless they can be turned to the advantage of the subjects.