“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 .”
“As one acts and conducts himself, so does he become. The doer of good becomes good. The doer of evil becomes evil. One becomes virtuous by virtuous action, bad by bad action”
“The answer to the problem of evil does not lie in trying to establish its point of origin, for that is simply not revealed to us. Rather, in the moment of the cross, it becomes clear that evil is utterly subverted for good.... If God can take the greatest of evils and turn them for the greatest of goods, then how much more can he take the lesser evils which litter human history, from individual tragedies to international disasters, and turn them to his good purpose as well.”
“But what virtue I do have is in me and of me. Men deny the good that comes from themselves, calling it God. So do they with their won evil, calling it the Devil.”
“There is indeed good and there is indeed evil, and both walk the earth. But good has little to do with the forms of religion, and evil has as little to do with so much behavior condemned by religion. Both good and evil vie for the passions of the heart. For love!”
“The world can be made beautiful again by viewing it as a battlefield. When we have defined and isolated the evil things, the colors come back into everything else. When evil things have become evil, good things, in a blazing apocalypse, become good. There are some men who are dreary because they do not believe in God; but there are many others who are dreary because they do not believe in the devil.”