Recently reading Silvano Borruso and St. Thomas Aquinas (I am always reading Aquinas) has prompted me to reflect on the nature of intellectual knowledge.
While it may be true that materialism as a philosophy is not as popular as it once was, it seems that materialism is by far the dominant presupposition I encounter among people today. Perhaps few would be able to explain it in philosophical terms, but more and more people seem to regard matter as the only reality in the world. Or, at least they live and think as if matter is the only reality.
Simply stated, materialism seeks to explain everything that occurs in the universe as resulting from the conditions and activity of matter. Consequently, it denies the existence of God and the soul. But, it seems to me that to be consistent it must deny as well any intellectual knowledge at all.
Strictly speaking, that which acts and exists without involving anything material, and thus without any organ, is immaterial--like thought, or intellectual knowledge. The brain is a material organ, but thought most definitely witnesses to something immaterial. In fact, it may be said that the human mind can think of notions that are realizable just as well without, as with, matter--for example, the true, the beautiful, the good. Moreover, the human mind can even think of realities existing entirely independently of all matter--like God, an angel, a soul.
While a growing number of common people today seem to presuppose a practical materialism, it is a presupposition subject to correction. Moreover, for those intentionally wed to a philosophical or scientific materialism, it should be pointed out that such a view is irrational. People may hold such a view, but they cannot do so as the result of rational thought. For thought and intellectual knowledge itself is evidence of immateriality and, thus, a direct denial of materialism.
By the way, the photo in this post above is one I took a couple of weeks ago of the original painting housed in the Vatican Museum. Known as "The School of Athens," it is one of the most famous paintings by the Italian Renaissance artist Raphael. Enlarge the photo and you will see that the painting shows the greatest philosophers, scientists, and mathematicians of classical antiquity. Plato and Aristotle, considered the greatest Greek philosophers, are standing in the center of the painting on top of the steps. Plato is holding his Timaeus and Aristotle is carrying a copy of his Nichomachean Ethics. Their gestures correspond to their philosophical interests--Plato pointing upward toward the heavens, and Aristotle gesturing down toward the earth. Diogenes is lying casually on the steps before them to show his philosophical attitude: he despised all material wealth and the lifestyle associated with it. To the left, the man leaning on the block is Heraclitus, meant to be Michaelangelo. This figure was an afterthought. It was not in the original drawing. Raphael snuck into the Sistine Chapel to view Michelangelo’s work on the ceiling by candle light. He was so awed by the unfinished work that he added Michelangelo after the manner of his depiction of the Prophet Jeremiah, to show his respect for the
artist.
The "School of Athens" is displayed next to the entrance of the magnificent Sistine Chapel, the walls and ceiling of which are adorned with the most marvelous artistic works known to man. Each time I have been in that room I have been powerfully moved almost to tears at the reality of the immaterial. While I view a composition of material colors on a material wall, it is the immaterial beautiful and the immaterial true that touches my immaterial soul.