Vale más hacer y arrepentirse, que no hacer y arrepentirse. - Niccolò Machiavelli

And let it here be noted that men are either to be kindly treated, or utterly crushed, since they can revenge lighter injuries, but not graver.

Men nearly always follow the tracks made by others and proceed in their affairs by imitation, even though they cannot entirely keep to the tracks of others or emulate the prowess of their models. So a prudent man should always follow in the footsteps of great men and imitate those who have been outstanding. If his own prowess fails to compare with theirs, at least it has an air of greatness about it. He should behave like those archers who, if they are skilful, when the target seems too distant, know the capabilities of their bow and aim a good deal higher than their objective, not in order to shoot so high but so that by aiming high they can reach the target.

It is enough to ask somebody for his weapons without saying 'I want to kill you with them', because when you have his weapons in hand, you can satisfy your desire.