Men should be either treated generously or destroyed, because they take revenge for slight injuries - for heavy ones they cannot. - Niccolò Machiavelli

Men are either to be kindly treated, or utterly crushed, since they can revenge lighter injuries, but not graver. Wherefore the injury we do to a man should be of a sort to leave no fear of reprisals.

Whoever desires constant success must change his conduct with the times.

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.