False language, evil in itself, infects the soul with evil.

There are two kinds of disease of the soul, vice and ignorance.

False words are not only evil in themselves, but they infect the soul with evil.

The money one gets for selling one's soul is always spent in deadening one's conscience, so the net gain at the end of a lifetime is no greater than if the diabolic bargain had not been struck.

If one knows what is right, he will do it; nobody wants to be evil.

The only good is knowledge and the only evil is ignorance.