THEAETETUS: Certainly.

STRANGER: But, on the other hand, when we say 'what is not,' do we not

attribute unity?

THEAETETUS: Manifestly.

STRANGER: Nevertheless, we maintain that you may not and ought not to

attribute being to not-being?

THEAETETUS: Most true.

STRANGER: Do you see, then, that not-being in itself can neither be

spoken, uttered, or thought, but that it is unthinkable, unutterable,

unspeakable, indescribable?

THEAETETUS: Quite true.

STRANGER: But, if so, I was wrong in telling you just now that the

difficulty which was coming is the greatest of all.

THEAETETUS: What! is there a greater still behind?

STRANGER: Well, I am surprised, after what has been said already, that

you do not see the difficulty in which he who would refute the notion of

Sophist