The attitude of Carlo Cattaneo towards positivism has ever been an intriguing problem among the historians of modern Italian philosophy. A long-standing interpretative tradition saw in him a forerunner of the positivism which flourished in Italy during the second half of nineteenth century. The Author of the present article maintains that is possible to find some analogies between Cattaneo’s reflections upon history and science and the main topics of the principal exponents of positive philosophy, such as Auguste Comte, John Stuart Mill, or the best Italian follower of millian methodology of history Pasquale Villari. In the same time the Author maintains that Cattaneo would never have accepted positivism as a new all-embracing philosophical system. This anti-systematic strain of Cattaneo’s thought became particularly evident in his last philosophical work, Psychology of the associated minds, now accessible in a highly careful critical edition.
Keywords: History, Logic, Methods, Positivism, Psychology, System.