Euthydemus

by Plato

Then there is no such thing as false opinion?

No, he said.

Then there is no such thing as ignorance, or men who are ignorant; for is not ignorance, if there be such a thing, a mistake of fact?

Certainly, he said.

And that is impossible?

Impossible, he replied.

Are you saying this as a paradox, Dionysodorus; or do you seriously maintain no man to be ignorant?

Refute me, he said.

But how can I refute you, if, as you say, to tell a falsehood is impossible?

Very true, said Euthydemus.