Mauri, MargaritaCruz Prados, AlfredoFernández Gel, EnricUniversitat de Barcelona. Facultat de Filosofia2023-07-242023-07-242023-07-10https://hdl.handle.net/2445/201100[eng] I study the metaphysical foundation of ethics in Aristotle and Aquinas. I conclude their ethical systems rest on an essentialist and teleological metaphysics, without which they collapse. Next, I go on to study the philosophical justification of said metaphysics, with arguments drawn from Aristotle and Aquinas and recent trends in contemporary English-speaking philosophy. I end exploring how an Aristotelian naturalist could use this metaphysical foundation of ethics to undercut a famous moral argument for God’s existence. I also propose a way for the Thomist to rebuild the moral argument, arguing from the metaphysical foundation of ethics to God.207 p.application/pdfeng(c) Fernández Gel, Enric, 2023ÈticaVirtutMetafísicaAristòtil, 384 aC-322 aCTomàs, d'Aquino, sant, 1225?-1274EthicsVirtueMetaphysicsinfo:eu-repo/semantics/doctoralThesisinfo:eu-repo/semantics/openAccesshttp://hdl.handle.net/10803/688811