 The young Antoine attended the Collège de Calvi-Sorbonne, where one of his fellow students was his nephew, Isaac Lemaître de Sacy. Arnauld went on to study philosophy at the Collège de Lisieux, and then decided to follow in his father’s steps as a lawyer. However, under the influence of his mother and her confessor, Jean Duvergier, the abbé de Saint-Cyran¸ he changed his mind and began studies in theology in 1633.