On April 19, Fr. François Evain S.J. was called to the Father's house. Fr. Evain was born in Sedan (France, Ardennes) on September 21, 1920, entered the Society of Jesus on October 27, 1938, and was ordained a priest on July 29, 1951.

After the Baccalaureate in Philosophy, in July 1946 in Vals-près-Le-Puy, he graduated in Theology in Enghien, Belgium, in July 1952, and then in Philosophy at the Pontifical Gregorian University in June 1955. In June 1962 he obtained his Doctorate in Philosophy in Vals-près-Le-Puy with the dissertation entitled "Être et a priori: the idée d'être comme condition a priori de possibilité de la perception intellectuelle dans le 'Nuovo Saggio' d'A. Rosmini". Subsequently, he obtained his Doctorate in Philosophy in 1972 and his Doctorate in Letters in 1977, at the Université de Grenoble.

As for his teaching activity, from 1946 to 1948 he taught Philosophy at the Collège St. Clément in Metz; from 1955 to 1958 he taught General Ontology at the Faculty of Philosophy of Vals-près-Le-Puy; from 1958 to 1972 he was professor at the Institut Superieur de Théologie-Scolasticat SJ et Seminaire Interdiocesain Tananarive (Madagascar) teaching Philosophical Anthropology, General Ethics, and History of modern and contemporary philosophy. In the same institution, from 1960 to 1972 he also held the position of Director of Philosophical Studies.

From 1974 he was Secretary General of CERIC (Center des Recherches Interdisciplinaire de Chantilly) until 1977, the year in which he started his teaching career in History of Modern Philosophy at the Faculty of Philosophy of the Pontifical Gregorian University. Here, in 1979 he was appointed Extraordinary Professor and then, in 1983, Full Professor at the same Faculty.

Specializing in Rosmini's ontology, he spent most of his apostolic life in the formation and teaching of philosophy. His bibliography is extensive and extensive, including above all numerous contributions within the Rosminian Journal of Philosophy and Culture. In 2014, due to the worsening of Alzheimer's disease, from which he suffered, he was transferred to the city of Vanves, at the EHPAD Maison Soins et Repos rest home, where he died.