The proposition has... been laid down in the most general terms, "All evils are negations." Thus for man death is evil; death is his non-existence. I… - Moshe ben Maimon

Maimonides was a zealous disciple of Aristotle, although the theory of the Kalām might seem to have been more congenial to Jewish thought and belief. The Kalām upheld the theory of God’s Existence, Incorporeality, and Unity, together with the creatio ex nihilo. Maimonides nevertheless opposed the Kalām, and, anticipating the question, why preference should be given to the system of Aristotle, which included the theory of the Eternity of the Universe, a theory contrary to the fundamental teaching of the Scriptures, he exposed the weakness of the Kalām and its fallacies.

[T]he principal part in the human body, namely, the heart, is in constant motion, and is the source of every motion noticed in the body; it rules over the other members, and communicates to them through its own pulsations the force required for their functions. The outermost sphere by its motion rules in a similar way over all other parts of the universe, and supplies all things with their special properties. Every motion in the universe has thus its origin in the motion of that sphere; and the soul of every animated being derives its origin from the soul of that same sphere.

Through the constant revolution of the fifth element, with all contained therein, the four elements are forced to move and to change their respective positions, so that fire and air are driven into the water, and again these three elements enter the depth of the earth. Thus are the elements mixed together; and when they return to their respective places, parts of the earth, in quitting their places, move together with the water, the air and the fire. In this whole process the elements act and react upon each other. The elements intermixed, are then combined, and form at first various kinds of vapours; afterwards the several kinds of minerals, every species of plants, and many species of living beings, according to the relative proportion of the constituent parts. All transient beings have their origin in the elements, into which again they resolve when their existence comes to an end. The elements themselves are subject to being transformed from one into another; for although one substance is common to all, substance without form is in reality impossible, just as the physical form of these transient beings cannot exist without substance.