Parfit: a philosopher and his mission to save morality

Abstract

The development of modern moral philosophy is examined through the intellectual trajectory of a figure whose work fundamentally altered concepts of personal identity and ethical obligation. Early theoretical contributions established a reductionist view of the self, arguing that persons are not separate entities beyond their mental and physical continuities. This framework necessitates a significant reassessment of duties toward future generations, specifically regarding the non-identity problem and the evaluation of population levels. The inquiry later expanded into a systematic defense of moral objectivism, positing that normative reasons are as factually grounded as logical or mathematical truths. By synthesizing Kantianism, consequentialism, and contractualism, this philosophical program argues for the convergence of major ethical schools into a unified “triple theory.” This rigorous analytical methodology utilized elaborate thought experiments to test the consistency of human intuitions. The life accompanying these ideas was defined by an uncompromising perfectionism and a monomaniacal dedication to academic production, illustrating the deep entanglement between psychological singularness and the pursuit of objective truth. This examination demonstrates how a life removed from traditional social norms enabled the creation of a transformative body of work concerning the rational foundations of morality. – AI-generated abstract.