Adam Pugen at Reality Journal.
"To this end, McLuhan over the course of decades created his own intellectual synthesis between Thomistic metaphysics and a host of other sources such as: Ciceronian humanism, gestalt psychology, the avant-garde aesthetics of Wyndham Lewis and James Joyce, the cultural anthropology of Giambattista Vico, the poetry criticism of F.R. Leavis, and the 'anonymous' cultural history of Siegfried Giedion."(via Brian Kemple)
Thomas Aquinas, Summa Theologica, in Great Books of the Western World (first edition, 52 Vol., 1952) volumes 19-20, and Great Books of the Western World (second edition, 60 Vol., 1990) volumes 17-18,
James Joyce, A Portrait of the Artist as a Young Man, in Great Books of the Western World (second edition, 60 Vol., 1990) volume 59