The thesis expressed in this essay is opposed to the relativistic subjectivism typical of postmodern culture, affirming that in aesthetics, as well as in ethics, given a reference system there are cores of objectivity within which are inscribed truths of reason and truths de facto. The realism proposed here takes the form of an anti-subjectivistic philosophical theory which takes as its basis the reality of the external world: it is the result of the realist tradition born from the philosophy and psychology of perception represented by James J. Gibson and, even more incisively, from Gestalt tradition that begins with Gaetano Kanizsa and culminates in the work of Paolo Bozzi. The beginning of knowledge lies in the appearance of...