Chenu is ninety. Although he may remain far less renowned in the English-speaking world than many of his juniors, such as Congar and de Lubac among his compatriots, not to mention Rahner, Lonergan, Hans Küng, and perhaps Hans Urs von Balthasar now, his intervention in the history of reading Aquinas, as well as the part that he played in the profound shift of Catholic consciousness that was precipitated by Vatican II, may well hold much greater promise of continuing significance.

What that significance might be is suggested by the republication, at the insistence of some of his friends, of the small book which he published in 1937, and which the Holy Office placed on the Index of Prohibited Books in 1942.

(As a young Dominican, in 1958, I remember being admonished by the librarian, the late Fr Cornelius Ernst, who had himself drawn my attention to it, that, although the book stood on the open shelves of the study-house library, I needed special permission to read it. The Index was abolished in 1966.)