You may be obliged to wage war, but not to use poisoned arrows... An honourable man never uses forbidden weapons, such as using a friendship that's ended for the purposes of a hatred just begun: a confidence must never be used for a vengeance. The slightest taint of treason tarnishes the good name.
Baltasar Gracián, 1647 (tr. Joseph Jacobs, 1892)
Conflict is sometimes unavoidable; dishonour in conflict never is. The maxim draws the bright line at the poisoned weapon, and its clearest example is timeless: the secret shared in friendship, later deployed as a weapon when the friendship turns. Using it wins the immediate fight and destroys the thing that outlasts every fight, your name, because everyone watching learns that a confidence given to you is a future liability. Honour in a dispute is not softness. You fight to win. You simply refuse the weapons that would make the winning cost more than the loss, because the reputation for clean dealing is worth more than any single victory it forbids.
Practice
- Fence off the permanently forbidden weapons before any fight: old confidences, private vulnerabilities, another person's secret. These stay sheathed even when losing.
- Fight to win on the merits, hard; honourable does not mean gentle, it means clean (maxim 162 lets the work do it).
- Assume every onlooker is taking notes on your methods; they are deciding whether you are safe to deal with next.
Use this when
- Use this in the disputes that tempt the low blow: partnership splits, family conflicts, rivalries with someone who knows your secrets.
- Use it especially when you are losing; the temptation to reach for the poisoned arrow peaks exactly when the clean weapons are failing.
Ignore this when
- Don't confuse honour with disarmament; you keep every legitimate weapon and use them fully (maxim 172 still says pick your opponents).
- Don't extend honour to those actively using treason against you to the point of self-destruction; defend fully, but the maxim's point is you need not become them to win.
A picture of it
A partnership dissolves badly, and one partner holds a genuinely damaging secret from the early years, confided over a decade of trust. The lawyers hint that it would end the dispute in an afternoon. He does not use it, settles the harder clean way instead, and says nothing about it ever. The trade notices what he did not do as much as what he did, and for the rest of his career people bring him their confidences knowing they are safe. The unused arrow bought more than the victory it declined.
Fight hard, fight clean. The confidence you refuse to weaponise is worth more than the fight it would have won.