The so-called evils are evils only in relation to a certain thing, and that which is evil in relation to a certain existing thing, either includes the non-existence of that thing or the non-existence of some of its good conditions.

The Mutakallemim... apply the term non-existence only to absolute non-existence, and not to absence of properties. A property and the absence of that property are considered by them as two opposites, they treat, e.g., blindness and sight, death and life, in the same way as heat and cold. Therefore they say, without any qualification, non-existence does not require any agent, an agent is required when something is produced.

The corporeal element in man is a large screen and partition that prevents him from perfectly perceiving abstract ideals; this would be the case even if the corporeal element were as pure and superior as the substance of the spheres; how much more must this be the case with our dark and opaque body. However great the exertion of our mind may be to comprehend the Divine Being or any of the ideals, we find a screen and partition between God and us.

This gift... which God gave us in order to enable us to perfect ourselves, to learn and to teach, must not be employed in doing that which is for us most degrading and perfectly disgraceful... Those who employ the faculty of thinking and speaking in the service of that sense which is no honour to us, who think more than necessary of drink and love, or even sing of these things; they employ and use the divine gift in acts of rebellion against the Giver, and in transgression of his commandments.

Those who desire to be men in truth, and not brutes, having only the appearance and shape of men, must constantly endeavor to reduce the wants of the body, such as eating, love, drinking, anger, and all manners originating in lust and passion; they must feel ashamed of them and set limits to them for themselves.

Some consider... all wants of the body as shame, disgrace, and defect to which they are compelled to attend; this is chiefly the case with the sense of touch, which is a disgrace to us according to Aristotle, and which is the cause of our desire for eating, drinking, and sensuality. Intelligent persons must, as much as possible, reduce these wants, guard against them, abstain from speaking of them, discussing them, and attending to them in company of others. Man must have control over all these desires, reduce them as much as possible, and only retain of them as much as is indispensable. His aim must be the aim of man as man, viz., the formation of ideas, and nothing else. The best and sublimest among them is the idea which man forms of God, angels, and the rest of the creation according to his capacity. Such men are always with God, and of them it is said, "Ye are princes, and all of you are children of the Most High." (Ps. lxxxii. 6) This is man's task and purpose.

It was necessary that the very noble form of man, which is the image and likeness of God... should be joined to the substance of dust and darkness, the source of all defect and loss. For these reasons the Creator gave to the form of man power, rule, and dominion over the substance;—the form can subdue the substance, refuse the fulfillment of its desires, and reduce them, as far as possible, to a just and proper measure.

The knowledge of God, the formation of ideas, the mastery of desire and passion, the distinction between that which is to be chosen and that which is to be rejected, all these man owes to his form...

Man's shortcomings and sins are all due to the substance of the body and not to its form; while all his merits are exclusively due to his form.

Whatever form it has, it [matter] will be disposed to receive another form; it never leaves off moving and casting off the form which it has in order to receive another. ...It is therefore clear that all corruption, destruction, or defect comes from matter.