Though I would highly recommend The One and the Many by Fr. Clarke (along with his collection of essays published as Explorations in Metaphysics) I think it would be a big mistake to start there, either from a philosophical or historical perspective.
WIthout a prior knowledge of Hume and Kant ‘The One and the Many’ is only confusing. It is after all a DEFENSE of metaphysics but if you do not know the offense, how can you understand the defense?
Furthermore Fr. Clarke rightfully belongs to a different Thomistic camp than Gilson and Maritain and Fr. Clarke’s metaphysics is highly influenced by platonism, Heidegger and partially by Hegel. I believe that Fr; Clarke discusses his development away from the classical Aristotelean/Thomism of Maritain in the book New Themes in Christian Philosophy. Fr. Clarke calls himself a neo-Thomist, a title Maritain opposed in Preface to Metaphysics.
Karl, I am sorry to hear that you are a lawyer. Actually, good on you to want to delve beyond the ordinary level of intellectual activity. I find philosophy a branch of study which illuminates all other fields of study (though the Medieval’s thought Theology was the queen of sciences).
My four suggestions to you would be:
-Chesterton’s ‘Aquinas: The Dumb Ox’ (read it and reread it to understand the spirit of the relationship between Theology philôsophy. Both Pieper and Gilson complained that Chesterton had out-done them)
-Etienne Gilson’s ‘Reason and Revelation in the Middle Ages’ (another fantastic and short book on the relationship between theology and philosophy but not properly about Aquinas)
-Josef Peiper ‘Guide to Aquinas’ (good for giving details about Aquinas and history of the era in a short easy to read book)
-Frederick Copleston’s ‘Aquinas’ (Slightly more indepth than any of the other books but easy to read and not requiring much background in the various fields of philosophy).
I am not sggesting these books in any particular order. It is up to you to choose depending on your interests, abilities and what happens to be infront of you. All four are rather short, rather interesting and rather easily/cheaply available. Another book I could add to the list but is much more difficult to find is Martin D’Arcy’s book on Aquinas. D’Arcy starts out slowly (unlike Gilson’s Christian Philosophy of Thomas Aquinas) and builds up into the philosophy.
Perhaps D’Arcy would be a good bridge between the more introductory books aforementioned and the heavy books like Gilson’s Christian Philosophy of T A or Maritain’s Degrees of Knowledge.
Good reading and god spead.
P.S. Used books are available at amazon,
www.alibris.com, or
www.abebooks.com