Italian Medieval philosophy was mainly Christian, and included philosophers and theologians such as St Thomas Aquinas, the foremost classical proponent of natural theology and the father of Thomism, who reintroduced Aristotelian philosophy to Christianity. Notable Renaissance philosophers include: Giordano Bruno, one of the major scientific figures of the western world; Marsilio Ficino, one of the most influential humanist philosophers of the period; and Niccolò Machiavelli, one of the main founders of modern political science. Machiavelli's most famous work was ''The Prince'', whose contribution to the history of political thought is the fundamental break between political realism and political idealism. Italy was also affected by the Enlightenment, a movement which was a consequence of the Renaissance. University cities such as Padua, Bologna and Naples remained centres of scholarship and the intellect, with several philosophers such as Giambattista Vico (widely regarded as being the founder of modern Italian philosophy) and Antonio Genovesi. Cesare Beccaria was a significant Enlightenment figure and is now considered one of the fathers of classical criminal theory as well as modern penology. Beccaria is famous for his ''On Crimes and Punishments'' (1764), a treatise that served as one of the earliest prominent condemnations of torture and the death penalty and thus a landmark work in anti-death penalty philosophy.