ABSTRACT
The moral rule not to do harm has a corollary moral rule to undo harm that is done. This moral rule of undoing harm is well recognized in everyday life. A child who dirties some object may be required to clean it. A person who insults another may be required to apologize. In married couples, recompense in the form of gifts or soft words is often part of “making up” for distressful acts. So ubiquitous is the moral rule of recompense that at least one philosopher (Ross, 1930, p. 21) has elevated it to a prima facie duty.
