St. Thomas Aquinas (1225-1274)

Summa Theologica

1273

"For the relation of phantasms to the intellect is like the relation of colors to the sense of sight, as he says De Anima iii, 5,7. Therefore, as the species of colors are in the sight, so are the species of phantasms in the possible intellect."

The Commentator held that this union is through the intelligible species, as having a double subject, in the possible intellect, and in the phantasms which are in the corporeal organs. Thus through the intelligible species the possible intellect is linked to the body of this or that particular man. But this link or union does not sufficiently explain the fact, that the act of the intellect is the act of Socrates. This can be clearly seen from comparison with the sensitive faculty, from which Aristotle proceeds to consider things relating to the intellect. For the relation of phantasms to the intellect is like the relation of colors to the sense of sight, as he says De Anima iii, 5,7. Therefore, as the species of colors are in the sight, so are the species of phantasms in the possible intellect. Now it is clear that because the colors, the images of which are in the sight, are on a wall, the action of seeing is not attributed to the wall: for we do not say that the wall sees, but rather that it is seen. Therefore, from the fact that the species of phantasms are in the possible intellect, it does not follow that Socrates, in whom are the phantasms, understands, but that he or his phantasms are understood.
(I, Q76, A1)

Optics::Colors

Reading at Past Masters

St. Thomas Aquinas, Summa Theologiae, trans. Fathers of the English Dominican Province (London: Burns, Oates, and Washburne, 1912-36; New York: Benziger, 1947-48; New York: Christian Classics, 1981). Text from Intelex Past Masters, The Collected Works of St. Thomas Aquinas. Electronic edition. <Link to Past Masters>

06/14/2011