Gustavo Bontadini is generally known for his contribution to metaphysical reflection. Famous, indeed, is his «short discourse», a sort of direct path through which he intends to incontrovertibly demonstrate the existence of God. Equally famous is his polemic with Emanuele Severino, who forced Bontadini’s neoclassical metaphysics within the narrow limits of a renewed Parmenidism. Lesser known, is instead Bontadini’s contribution to the so-called «second philosophies», especially with regard to philosophical anthropology and moral philosophy. The present paper is pre- cisely devoted to these lesser-studied features of his thought.