Abstract
Though famously Derek Parfit is known for his reductionism about persons, he does, in fact, also profess a form of realism about persons based on the way the language of persons and personal identity is used. We might say that Parfit is an ontological reductionist about persons but not a conceptual reductionist. In this discussion note I try to bring out a difficulty for this kind of hybrid view by showing that there are many ways – too many in fact – in which we use the language of persons and personal identity that cannot be reconciled with the core of Parfitian ontological reductionism. If it is true that the kind of reconciliation Parfit and his followers assent to is untenable, then a stark choice is presented between reductionism and a repudiation of most, if not all vestiges of realism. A genuine reductionist ought to choose against the latter.