"The Church, trusting in the Holy Spirit that leads her, trusts also all the peoples that she comes to free. That is no sign of naïveté on her part. She […] knows […] that all men are one in community of their divine origin and destiny; and that suffices to give her confidence in face of all the theories engendered by pride and egoism.[…] Besides, does not the only efficacious way to bring out the hidden truth and to avoid extinguishing the good that would break forth lie in a systematic desire to study sympathetically those forms of thought that are most remote from us, and in this study to pay particular attention to privileged cases, however rare they may be? It is at its highest reaches that humanity must be understood; the plains—or the depressions—will always be explored soon enough."