ABSTRACT In this article I freely use the thought of Charles Hartshorne to defend the ethical permissibility of abortion in the early stages of pregnancy. In the later stages of pregnancy the fetus has an ethical status similar to that of a sentient yet non‐rational animal, a status which should generate in us considerable ethical respect. The distinctiveness of this Hartshornian approach lies in the effort to bring metaphysics to bear on a controversial issue in applied ethics. In particular, the (...) metaphysical issue of temporal relations is crucial to consider in the effort to ascertain the ethical status of the fetus. Two symmetrical (immoderate) theories of temporal relations are criticised, one of which provides the basis for opposition to abortion, a theory wherein one is internally related both to one's past and to one's future. An asymmetrical (moderate) theory of temporal relations is defended, a theory wherein one is internally related to one's past yet externally related to the future. This latter theory would permit abortion in the early stages of pregnancy. (shrink)