The Republic by Plato Part 3 Page 93

falsehood and learns better, against his will whenever he is deprived of a truth.

I understand, he said, the willing loss of a resolution; the meaning of the unwilling I have yet to learn.

Why, I said, do you not see that men are unwillingly deprived of good, and willingly of evil?

Is not to have lost the truth an evil, and to possess the truth a good? and you would agree that to conceive things as they are is to possess the truth?

Yes, he replied; I agree with you in thinking that mankind are deprived of truth against their will.

And is not this involuntary deprivation caused either by theft, or force, or enchantment?

Still, he replied, I do not understand you.