Ursula K. Le Guin
After a great enmity is settled some enmity always remains. How to make peace? Wise souls keep their part of the contract and don’t make demands on others. People whose power is real fulfill their obligations; people whose power is hollow insist on their claims.
The Way of heaven plays no favorites. It stays with the good.
Note UKLG: This chapter is equally relevant to private relationships and to political treaties. Its realistic morality is based on a mystical perception of the fullness of the Way.