Adler, Mortimer, 52
Albert, the Great, 5
Aristotle, 5, 18, 19, 42, 45, 52, 72, 74, 93
Augustine, St., 8, 13, 23
Berdiaeff, Nicolas, 24
Cajetan, 9, 77
Catherine of Sienna, 74
Clérissac, H., 70
Comte, Auguste, 82
Descartes, 26
de Vitoria, Francis, 75
Eschmann, I. Th., 6
Farrell, Walter, 52
Garrigou-Lagrange, 3, 34
Genito, 75
Gertrude, 74
Hegel, 23
Journet, Charles, 79
John of the Cross, 74, 77
John of St. Thomas, 10, 46
Nietzsche, 3
Pascal, 21, 22, 23, 28
Paul, St., 11
Phelan, Gerald B., 65
Pindar, 34
Pius XII, 19
Plato, 74
Proudhon, 24
Pseudo-Dionysius, 74
Rohner, M., 5
Rousseau, 82
Ruysbroeck, 74
Schwalm, 3
Seneca, 67
Suarez, 45
Theresa, St., 74
Thomas Aquinas, St. Quoted in every section
Welty, Eberhard, 4