Arnold Geulincx

Arnold Geulincx (1624–1669) was a Flemish philosopher, metaphysician, and logician, a follower of René Descartes who developed detailed Cartesian philosophies. He is noted for his contributions to the mind-body problem and his formulation of occasionalism, predating Leibniz's similar concept. Geulincx's philosophy, summarized by the phrase "ita est, ergo ita sit" (it exists, therefore it is so), addressed the human condition with an emphasis on humility and the limitations of human causality. He argued that humans are mere spectators of their bodily actions, as they do not know the underlying mechanics. This led to a form of mysticism and asceticism, tempered by the obligation to care for the body and species. Born in Antwerp, Geulincx studied at the University of Leuven, where he became a professor but lost his post. He later converted to Calvinism, moved to Leiden, and became a reader and then professor of logic. Despite his intellectual contributions, he lived in poverty and died in Leiden in November 1669. His works, primarily written in Latin, were largely published posthumously. Geulincx's influence is noted in the writings of Samuel Beckett, who frequently cited his "gloomy nostrum" and his emphasis on the human condition.