Abstract

Doubts about the adequacy of appeals to impartial practical reason give those with rationalist sympathies reason to explore the metaphysical, and not merely strategic, reconciliation of prudence and altruism contained in metaphysical egoism. Even if we recognize impartial practical reason, the supremacy of moral demands may depend upon the plausibility of metaphysical egoism. For as long as we recognize the demands of prudence, the conflict between altruism and prudence will threaten altruism's supremacy. We might consider one version of metaphysical egoism that appeals to psychological reductionism about personal identity and exploits some Platonic and Aristotelian analogies between intrapersonal and interpersonal relations and concern.