Settle a Great Grudge and Some Remains
The Text
和大怨，必有余怨，安可以为善？是以圣人执左契，而不责于人。有德司契，无德司彻。天道无亲，常与善人。
Settle a great grudge, and some grudge surely remains — how can that be called good? So the sage holds the left tally and does not press the other side. One with virtue holds the tally; one without virtue holds the ledger. The way of heaven has no favourites — it always gives to the good.
Reading it
The tally splits and each side keeps half; the ledger records who owes what. After great injury, reconciliation that insists on full settlement reopens the wound — holding your half without pressing is the only settlement that does not regenerate the grudge. No favourites is not indifference: the giving follows the one who practised this.
契一分为二，各执其半；彻是账簿，记着谁欠什么。大伤之后，坚持足额清偿的和解必然重开伤口——执契而不责，是唯一不再生怨恨的结清。「无亲」不是冷漠：给予跟随着践行此道的人。
Pick one settled or half-settled grievance. Hold your tally — stop pressing for the remaining balance this week.
挑一桩已了或半了的旧怨。这周执契不责——放弃追讨余款。