The Author presents the intellectual profile of Alfonso Ingegno (1942-2013) showing the coherent development of his research. From the outset, Alfonso analyses the dialectical relationship between metaphysics, cosmology and religion in the Renaissance period and the early Modern Age, trying to overcome any unilateral vision. His historical-philosophical and moral studies range from Humanism and the Aristotelian tradition of the 15th century to the philosophical way of thinking in the 17th century. But his most important contributions concern the interplay between anti-Aristotelian and anti-Christian polemics in Bruno’s philosophy. The essay on Cardano, the first comprehensive monograph on this late Renaissance philosopher, is also essential because it opened the way to many investigations and subsequent projects. In his last years, Ingegno concentrated mainly on Valla’s ethics and its relationship to Augustinian theology.
Keywords: History of Renaissance philosophy, early modern philosophy, ethics, cosmology and religion, Renaissance Neoplatonism, anti-Christianism, anti-Aristotelianism