A History of Mediaeval Jewish Philosophy

by Isaac Husik

The existence of separate intelligences he proves in the same way as Ibn Daud from the motions of the celestial spheres. These motions cannot be purely "natural," i. e., unconscious and involuntary like the rectilinear motions of the elements, fire, air, water and earth, because in that case they would stop as soon as they came to their natural place, as is true of the elements (cf. above, p. [xxxiii]); whereas the spheres actually move in a circle and never stop. We must therefore assume that they are endowed with a soul, and their motions are conscious and voluntary. But it is not sufficient to regard them as irrational creatures, for on this hypothesis also their motions would have to cease as soon as they attained the object of their desire, or escaped the thing they wish to avoid. Neither object can be accomplished by circular motion, for one approaches in this way the thing from which one flees, and flees the object which one approaches. The only way to account for continuous circular motion is by supposing that the sphere is endowed with reason or intellect, and that its motion is due to a desire on its part to attain a certain conception. God is the object of the conception of the sphere, and it is the love of God, to whom the sphere desires to become similar, that is the cause of the sphere's motion. So far as the sphere is a body, it can accomplish this only by circular motion; for this is the only continuous act possible for a body, and it is the simplest of bodily motions.

Seeing, however, that there are many spheres having different kinds of motions, varying in speed and direction, Aristotle thought that this difference must be due to the difference in the objects of their conceptions. Hence he posited as many separate Intelligences as there are spheres. That is, he thought that intermediate between God and the rational spheres there are pure incorporeal intelligences, each one moving its own sphere as a loved object moves the thing that loves it. As the number of spheres were in his day thought to be fifty, he assumed there were fifty separate Intelligences. The mathematical sciences in Aristotle's day were imperfect, and the astronomers thought that for every motion visible in the sky there must be a sphere, not knowing that the inclination of one sphere may be the cause of a number of apparent motions. Later writers making use of the more advanced state of astronomical science, reduced the number of Intelligences to ten, corresponding to the ten spheres as follows: the seven planetary spheres, the sphere of the fixed stars, the diurnal sphere embracing them all and giving all of them the motion from east to west, and the sphere of the elements surrounding the earth. Each one of these is in charge of an Intelligence. The last separate Intelligence is the Active Intellect, which is the cause of our mind's passing from potentiality to actuality, and of the various processes of sublunar life generally.

These are the views of Aristotle and his followers concerning the separate Intelligences. And in a general way his views, says Maimonides, are not incompatible with the Bible. What he calls Intelligences the Scriptures call angels. Both are pure forms and incorporeal. Their rationality is indicated in the nineteenth Psalm, "The heavens declare the glory of God." That God rules the world through them is evident from a number of passages in Bible and Talmud. The plural number in "Let us make man in our image" (Gen. 1, 26), "Come, let us go down and confuse their speech" (ib. 11, 7) is explained by the Rabbis in the statement that "God never does anything without first looking at the celestial 'familia.'" (Bab. Talm. Sanhedrin 38b.) The word "looking" ("Mistakkel") is striking;[280] for it is the very expression Plato uses when he says that God looks into the world of Ideas and produces the universe.[281]

For once Maimonides in the last Rabbinic quotation actually hit upon a passage which owes its content to Alexandrian and possibly Philonian influence. Having no idea of the Alexandrian School and of the works of Philo and his relation to some theosophic passages in the Haggadah, he made no distinction between Midrash and Bible, and read Plato and Aristotle in both alike, as we shall see more particularly later.

Maimonides's detailed criticism of Aristotle we shall see later. For the present he agrees that the philosophic conception of separate Intelligences is the same as the Biblical idea of angels with this exception that according to Aristotle these Intelligences and powers are all eternal and proceed from God by natural necessity, whereas the Jewish view is that they are created. God created the separate Intelligences; he likewise created the spheres as rational beings and implanted in them a desire for the Intelligences which accounts for their various motions.

Now Maimonides has prepared the ground and is ready to take up the question of the origin of the world, which was left open above. He enumerates three views concerning this important matter.

1. The Biblical View. God created everything out of nothing. Time itself is a creation, which did not exist when there was no world. For time is a measure of motion, and motion cannot be without a moving thing. Hence no motion and no time without a world.

2. The Platonic View. The world as we see it now is subject to genesis and decay; hence it originated in time. But God did not make it out of nothing. That a composite of matter and form should be made out of nothing or should be reduced to nothing is to the Platonists an impossibility like that of a thing being and not being at the same time, or the diagonal of a square being equal to its side. Therefore to say that God cannot do it argues no defect in him. They believe therefore that there is an eternal matter, the effect of God to be sure, but co-eternal with him, which he uses as the potter does the clay.

3. The Aristotelian View. Time and motion are eternal. The heavens and the spheres are not subject to genesis and decay, hence they were always as they are now. And the processes of change in the lower world existed from eternity as they exist now. Matter is not subject to genesis and decay; it simply takes on forms one after the other, and this has been going on from eternity. It results also from his statements, though he does not say it in so many words, that it is impossible there should be a change in God's will. He is the cause of the universe, which he brought into being by his will, and as his will does not change, the universe has existed this way from eternity.

The arguments of Aristotle and his followers by which they defend their view of the eternity of the world are based partly upon the nature of the world, and partly upon the nature of God. Some of these arguments are as follows: