Then, he said, Chaeredemus is not a father.

He is not my father, I said.

But can a father be other than a father? or are you the same as a stone?

I certainly do not think that I am a stone, I said, though I am afraid that
you may prove me to be one.

Are you not other than a stone?

I am.

And being other than a stone, you are not a stone; and being other than
gold, you are not gold?

Very true.

And so Chaeredemus, he said, being other than a father, is not a father?

I suppose that he is not a father, I replied.

For if, said Euthydemus, taking up the argument, Chaeredemus is a father,
then Sophroniscus, being other than a father, is not a father; and you,
Socrates, are without a father.

Ctesippus, here taking up the argument, said: And is not your father in
the same case, for he is other than my father?