 While at the "Angelicum", Chenu was ordained in 1919 and completed his doctorate in theology in 1920 under the direction of Reginald Garrigou-Lagrange with a dissertation entitled "De contemplatione, "which studied the meaning of contemplation in Thomas Aquinas.. See Marie-Dominique CHENU, De contemplatione.Thèse de doctorat Angelicum, Rome 1920.Édition par Carmelo Giuseppe CONTICELLO (2019).