Putnam, ética e biologia

摘要

This study reconstructs the main criticisms of Hilary Putnam against those who try to belittle the moral philosophy based on ontological and epistemological considerations, arguing among other things that moral judgments lack scientific status, because they lack objects and consequently of truth conditions and so they would be reduced to merely emotive statements. Furthermore, this study reconstructs the general traits of Allan Gibbard’s norms expressivism in light of the criticisms of Putnam. Finally, we reconstructed some of the main criticisms of Jürgen Habermas to Gibbard’s norm expressivism.