The
Philosophy of Thomas Aquinas
TABLE OF
CONTENTS
For a more advanced & comprehensive discussion,
see:
The Philosophical
System of Thomas Aquinas, by Maurice de
Wulf
I.
The Life of Thomas Aquinas
--1225-1274
The "Angelic
Doctor"
Thomas Aquinas (picture),
born of a noble family in Rocca Secca, near Aquino
in 1225, was to complete the magnificent synthesis
of Scholasticism.
As a very young boy, he went to Monte Cassino,
the celebrated Benedictine monastery which at the
time was headed by one of his uncles. He displayed
such brilliance that the monks advised his father
to send him to the University of Naples, where he
could receive a more advanced education.
While in Naples, he entered the Dominican Order.
His mother, far from favorable to this move,
hastened to Naples; but the Dominicans, fearing her
opposition, had already send Thomas to Rome in the
hope that he would eventually be able to reach
Paris or Cologne.
His brothers captured him on the road and held
him prisoner in the fortress of San Giovanni at
Rocca Secca, where he remained almost two years
while his family tried to dissuade him from
following his vocation.
Finally released, he was sent to Rome, then to
Paris and Cologne where he studied in the school of
Albertus Magnus. There he was introduced to the
study of Aristotelianism and completed his
theological studies.
In 1252, Thomas Aquinas was sent to Paris to
further his studies and then to teach, which he
continued to do until 1260. In that year he
returned to the Roman province of his Order, where
he was given various offices of administration and
education in the province.
In 1269 he was again in Paris, where he carried
on the controversy against the Averroism of Siger
of Brabant. In 1272 he went to Naples to assume the
chair of theology at the university there. At the
beginning of 1274 he set out with a companion for
the Council of Lyons, but died en route, at the
Cistercian monastery of Fossa Nuova near Terracina,
on March 7, at the early age of forty-nine. He was
proclaimed a saint by the Church, and by posterity
has been acclaimed as the Angelic Doctor.
II.
The Works of Thomas Aquinas
The works of Thomas Aquinas may be conveniently
divided into four groups:
1. COMMENTARIES
- on the Logic, Physics, Metaphysics, and
Ethics of Aristotle;
- on the Scriptures;
- on Dionysius the Areopagite;
- on the Four Books of Sentences of Peter
Lombard.
2. SUMMAE
- The Summa contra Gentiles (A Summary Against
the Gentiles), founded substantially on rational
demonstration;
- The Summa Theologica (A Summary of
Theology), begun in 1265, and remaining
incomplete because of Thomas' early death.
3. QUESTIONS
- Quaestiones Disputatae (Disputed Questions):
De Veritate (On Truth), De Anima (On the Soul),
De Potentia (On Power), De Malo (On Evil),
etc.;
- Quaestiones Quodlibetales (Questions About
Any Subject).
4. OPUSCULA (selected examples)
- De Ente et Essentia (On Being and
Essence);
- De Unitate Intellectus (On the Unity of the
Intellect), written against the Averroists;
- De Regimine Principum (On the Rule of
Princes).
III.
An Introduction to His Doctrine
Thomas Aquinas was the first to recognize the
fact that Aristotelian intellectualism would be of
great help for the study of philosophy as well as
theology. But the introduction of Aristotle's works
involved the solution of the disputed question of
the relationship between philosophy and
theology.
At the time of Aquinas, besides the Averroist
theory of the double truth, by virtue of
which philosophy and theology were not only
separate but opposed, there was also
Augustinianism, which was largely accepted in the
School and held that no real distinction between
philosophy and theology was possible.
This confusion between philosophy and theology
was a necessary consequence of the theory of
illumination, according to which the human
intellect was considered incapable of abstracting
intelligibles from the data of experience,
but rather received them from the Divine
Teacher.
This Teacher communicated to the intellect the
intelligibles regarding the material things of the
surrounding world as well as those concerning the
invisible and supernatural world. Thus the human
intellect was capable of understanding not only
material things but also the mysteries of religion.
Hence no distinction between philosophy and
theology was possible.
Thomas Aquinas sharply opposed both Averroism
and Augustinianism. He did not accept the theory of
the double truth, not only because of its
irreligious consequences regarding the mortality of
the human soul, but because he was convinced of the
falsity of such a theory.
For Aquinas, what
reason shows to be true is absolutely true, so that
the opposite is absolutely false and
impossible. (1)
If religion, therefore, teaches something that
is opposed to reason, as the Averroists maintained
it does, it would teach what is absolutely false
and impossible.
Two contradictory truths cannot be admitted;
truth is one, either in the field of reason or of
religion. The two fields are separate but not
opposed. There are religious truths -- such as the
mystery of the Trinity and the Incarnation -- which
the human intellect cannot penetrate; and these
truths must accepted on the authority of
revelation.
Parallel to them, there are natural truths
concerning this visible world which are
intelligible to the human mind and are the object
of philosophy and science.
To the question whether there also some truths
which at the same time are revealed and open to
rational demonstration, Aquinas answers yes. Such
truths are the existence of God and the immortality
of the human soul, which are demonstrable by
reason. God revealed them, however, in order to
make these truths accessible to the minds of those
who cannot attain philosophical investigation.
(2)
But Aquinas also opposed Augustinian
illumination. Granting that the human soul is
intellectual by nature, he maintains that the human
intellect by its natural power is able to draw the
intelligibles from material objects. Besides its
own natural power, the human intellect does not
need any special divine assistance in abstracting
the intelligibles from the data of experience.
Indeed, if Aristotle, a pagan philosopher, could
establish a systematic and rational interpretation
of the visible world, we must admit that the human
intellect has the power of knowing some fundamental
principles and is capable of drawing therefrom a
perfect science without divine assistance.
Moreover, since with Aristotle we know what
rational demonstration means, we can see how vain
is the assumption of the Augustinians that the
mysteries of faith can be demonstrated "by means of
necessity."
The truths of faith are
above human understanding. They are the object of
faith and not of science. Hence philosophy and
theology are distinct and this distinction must be
retained.
Although distinct, they are related. Philosophy
shows the necessity of faith by demonstrating the
existence of God and the immortality of the soul.
Theology on the other hand helps philosophy to
reflect more deeply and to correct itself if some
philosophical conclusion is contrary to the
mysteries of faith. (3)
References:
(1) Contra Gent., I, 7.
(2) Summa. Theol., Part I, q. I, a.1.
(3) Summa Theol., Part I, q 1, a. 1; q. 12, a. 4;
q. 32, a. 1; In Primum Librum Sent., q. 1, a. 1 and
2.
To Page
Two
Enrich
Your Life With a Philosophy Book...
Enrich
Your Life With a Philosophy
Magazine...
|