And did you not say that you knew something?

I did.

If you know, you are knowing.

Certainly, of the knowledge which I have.

That makes no difference;--and must you not, if you are knowing, know all
things?

Certainly not, I said, for there are many other things which I do not know.

And if you do not know, you are not knowing.

Yes, friend, of that which I do not know.

Still you are not knowing, and you said just now that you were knowing; and
therefore you are and are not at the same time, and in reference to the
same things.

A pretty clatter, as men say, Euthydemus, this of yours! and will you
explain how I possess that knowledge for which we were seeking? Do you
mean to say that the same thing cannot be and also not be; and therefore,
since I know one thing, that I know all, for I cannot be knowing and not
knowing at the same time, and if I know all things, then I must have the
knowledge for which we are seeking--May I assume this to be your ingenious
notion?