 How might considerations of the sort constituted by prima facie duties enter our moral reasoning? They might do so explicitly, or only implicitly. There is also a third, still weaker possibility (Scheffler 1992, 32): it might simply be the case that if the agent had recognized a prima facie duty, he would have acted on it unless he considered it to be overridden. This is a fact about how he would have reasoned. 