Eugene, in writing to Fr. Mille and the scholastics in Switzerland, stressed that all study needs to bring the student to an encounter with God.
But never forget that it is for God you are working, that the glory of his holy name is at stake. That the Church expects this service from you.
It means you must supernaturalise your studies, sanctify them by the integrity of your intention, leaving all self-love aside, not seeking yourself in anything; in this way, profane authors have the same capacity to lift your thoughts to God as do the Fathers of the Church.
Letter to Jean Baptiste Mille, 3 January 1831, EO VIII n 377