Abstract

The philosophical dispute about personal identity thrives in part because common sense supports both sides. That is, our commonsense notion of a person is rich enough to accommodate both the animalist view that we are human beings whose lives are bounded by the biological events of birth and death and, also, the Lockean view that our lives as reflective beings could in principle come apart from a given animal life. Consequently, there is no way to arrive at a consistent position about personal identity without revising some aspect of our commonsense thinking about persons. This puts philosophers on a somewhat awkward footing. Other things being equal, they would prefer to provide conclusive arguments in favor of their views, arguments that rule out all of the alternatives as untenable. But this is not feasible in the case of personal identity. Any consistent account of personal identity that anyone wishes to defend must be put forward as a revisionary proposal that selects and develops some aspect of our inconsistent commonsense outlook over others. And anyone can resist the proposal by choosing to select and develop some other strand instead.