Abstract

This dissertation is the first comprehensive study of human freedom in the philosophy of Pierre Gassendi, a 17th century natural scientist, Catholic priest, and one of the founders of Early Modern philosophy. The key postulate of this dissertation is that the epistemology of probabilism, which represents Gassendi's skeptical stance toward the possibility of certain knowledge, is also the foundation of human freedom: the uncertain and merely probable nature of all our knowledge serves as a guarantee of the multiplicity of options open to us, and thereby ensures freedom. ;The first part of the dissertation investigates the sources on which Gassendi drew to elaborate his notion of freedom. The main sources are Aristotle's ethical theory and discussion of necessity, chance, and choice, as well as the Epicureans' theory of freedom. In conjunction with the latter, I consider the possibility that Gassendi conceives of the human mind---the seat of freedom---as corporeal, and thereby capable of generating autonomous developments on the basis of the natural motions of its atoms. ;The second part is devoted to studying Gassendi's epistemology of probabilism as the foundation of freedom. I look at the process of judgment that underlies choice, and consider the various manifestations of the freedom of indifference in the process of acquiring knowledge or preparing for a practical decision. I also look at the roles of the will and the intellect throughout these activities. ;The third part looks at theological issues in Gassendi's philosophy that relate to human freedom: divine concurrence with created beings, divine providence, and the limitations that faith imposes on the scope of our inquiry. ;The fourth and final part presents a study of Gassendi's ethics from the perspective of freedom. I investigate the role of temperament, passions, and opinions in human behaviour, and study the role of freedom in shaping these factors. I also consider the concept of pleasure as the central motive of human actions, and its various manifestations in Gassendi's ethics.