There is no possible source of evil except good.

For, were it not good that evil things should also exist, the omnipotent God would almost certainly not allow evil to be, since beyond doubt it is just as easy for Him not to allow what He does not will, as for Him to do what He will.

God judged it better to bring good out of evil than to suffer no evil to exist.

The greatest evil is physical pain.

Passion is the evil in adultery. If a man has no opportunity of living with another man's wife, but if it is obvious for some reason that he would like to do so, and would do so if he could, he is no less guilty than if he was caught in the act.

He that is kind is free, though he is a slave; he that is evil is a slave, though he be a king.