Pierre Gassendi (b. 1592, d. 1655) was born at Digne, France, became a priest in 1617, and later a professor of philosophy at Aix while still in his mid-twenties. As Saul Fisher notes in his excellent Pierre Gassendi’s Philosophy And Science: Atomism for Empiricists (Brill, 2007), “Gassendi’s career as a priest is a crucial intellectual facet of intellectual constitution: his writings reflect an unbending allegiance to Holy Scripture and Church teachings, though not necessarily in orthodox doctrinal lights” (1.) In 1624, he met Mersenne, and between 1629 to 1630, while traveling in the Low Countries, he met Isaac Beeckman. In his 1632 work, Mercurius in sole visus, he described his 1631 observation of the transit of Mercury as a confirmation of Kepler’s theories. In 1632, after returning to Digne, he began a study of the ancient Greek philosopher Epicurus.
Gassendi spent the remaining twenty or so years of his life going between Provence and Paris due to his involvement with a group of philosophers who had gathered around the French philosopher Mersenne. As Fisher details, in the Mersenne circle, “debates ranged over numerous topics central to the dismantling of the Aristotelian and Scholastic world-views” (3.) Mersenne, an associate of Descartes, was instrumental in allowing Gassendi’s objection to Descartes’ Meditations to be included in the published appendix entitled Objections and Replies.
While some historians consider Gassendi’s signature achievement to be his revival of ancient atomism, a complete
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