“All evil, all injustice, all harm that one does to someone else—in sum, all deviation from man's normative nature—in a much more fundamental way and in a far more ultimate sense one does to oneself, and not just metaphorically but literally.”

“Taqwā means to protect oneself against the harmful or evil consequences of one's conduct. If, then, by "fear of God" one means fear of the consequences of one's actions—whether in this world or the next (fear of punishment of the Last Day)—one is absolutely right. In other words, it is the fear that comes from an acute sense of responsibility, here and in the hereafter, and not the fear of a wolf or of an uncanny tyrant, for the God of the Qur’ān has unbounded mercy—although He also wields dire punishment, both in this world and in the hereafter.”

“Philologists assure us that żulm in Arabic originally meant "to put something out of its proper place," so that all wrong of any kind is injustice, i.e., an injustice against the agent himself) is, therefore, a very common term in the Qur’ān, with its clear idea that all injustice is basically reflexive.”

“If metaphysics enjoys the least freedom from assumed premises, man enjoys the least freedom from metaphysics in that metaphysical beliefs are the most ultimate and pervasively relevant to human attitudes; it is consciously or unconsciously the source of all values and of the meaning we attach to life itself.”

“This unstable character of man, this going from one extreme to the other, arising as it does out of his narrow vision and petty mind, reveals certain basic moral tensions within which human conduct must function if it is to be stable and fruitful. These contradictory extremes are, therefore, not so much a "problem" to be resolved by theological thought as tensions to be "lived with" if man is to be truly "religious," i.e., a servant of God. Thus, utter powerlessness and "being the measure for all things," hopelessness and pride, determinism and "freedom," absolute knowledge and pure ignorance—in sum, an utterly "negative self-feeling" and a "feeling of omnipotence"—are extremes that constitute natural tensions for proper human conduct. It is the "God-given" framework for human action. Since its primary aim isto maximize moral energy, the Qur’ān—which claims to be "guidance formankind"—regards it as absolutely essential that man not violate the balance of opposing tensions. The most interesting and the most important fact of moral life is that violating this balance in any direction produces a "Satanic condition" which in its moral effects is exactly the same: moral nihilism. Whether one is proud or hopeless, self-righteous or self-negating, in either case the result is deformity and eventual destruction of the moral human personality.”

“The idea behind verses about the sealing of hearts appears to be the psychological law that if a person once does a good or an evil deed, his chances of repeating that kind of action increase and of doing its opposite proportionately decrease. With constant repetition of an evil or of a good action, it becomes almost impossible for a person to do the opposite, or even to think of it, so much so that while men's hearts become "sealed" and their eyes "blinded" if they do evil, their doing good produces such a state of mind that the devil himself can have no sway over it. Nevertheless, actions which create a psychological habit, however strong their influence may be, must not be construed as absolute determinants, for there is no "point of no return" for human behavior: genuine repentance (tauba) can turn an apparently wholly evil man into a paragon of virtue; on the other hand, although this is much more rare, an apparent paragon of virtue (even a prophet!) can turn into a near devil enmeshed in carnal pleasures .”

“Nature exists for man to exploit for his own ends, while the end of man himself is nothing else but to serve God, to be grateful to Him, and to worship Him alone.”