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58 Ala. L. Rev. 575 (2006-2007)
Thomas Aquinas and the Metaphysics of Law

handle is hein.journals/bamalr58 and id is 585 raw text is: THOMAS AQUINAS AND THE METAPHYSICS OF LAW
William S. Brewbaker III*
ABSTRACT
Despite modemity's longstanding aversion to metaphysics, legal schol-
ars are increasingly questioning whether law can be understood in isolation
from wider questions about the nature of reality. This Article examines per-
haps the most famous of metaphysical legal texts-Thomas Aquinas's still
widely read Treatise on Law-with a view toward tracing the influence of
Thomas's metaphysical presuppositions.
This Article shows that Thomas's account of human law cannot be fully
understood apart from his metaphysics. Attention to Thomas's hierarchical
view of reality exposes tensions between Thomas's top-down account of
law and his sophisticated bottom-up observations. For example, Thomas
grounds human law's authority in its foundation in the higher natural and
eternal laws. At the same time, he is well aware that many if not most legal
questions involve determination of particulars-the resolution of ques-
tions that might reasonably be answered in more than one way. Thomas's
metaphysics sometimes works against his inclination to give place to human
freedom in the creation of law.
Thomas's metaphysical approach also raises important questions for
contemporary legal theory. His insistence on addressing the question of
law's ontological status, for example, challenges the reductionism of much
contemporary jurisprudence and provides a vocabulary for accounting for
the wide variety of analytical approaches legal philosophers employ.
INTRODUCTION    .......................................................................................... 576
I. THOMAS AQUINAS'S METAPHYSICAL CONCEPTION OF NATURE .......... 580
I. LAW 'S  ESSENCE  .................................................................................... 584
A . D efining  Law   .................................................................................. 584
B. Metaphysical Influences in the Treatise ......................................... 588
1I. HUMAN  LAW  'S ONTOLOGY    ................................................................. 592
*   Professor of Law, University of Alabama. I am grateful to Alfred Brophy, Alan Durham, David
VanDrunen, Timothy Hoff, Mark Murphy, John Nagle, and Michael Pardo for helpful comments on
previous drafts of this Article. I am also grateful to Dean Ken Randall and the University of Alabama
Law School Foundation for generous research support, to Chris Sanders for research assistance, to Caro-
line Barge for secretarial assistance, and to Ben Lucy for his friendship and encouragement. The errors
that remain are mine.

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