STRANGER: But upon this view, is the beautiful a more real and the not-beautiful a less real existence?
THEAETETUS: Not at all.
STRANGER: And the not-great may be said to exist, equally with the great?
THEAETETUS: Yes.
STRANGER: And, in the same way, the just must be placed in the same category with the not-just—the one cannot be said to have any more existence than the other.
THEAETETUS: True.
STRANGER: The same may be said of other things; seeing that the nature of the other has a real existence, the parts of this nature must equally be supposed to exist.
THEAETETUS: Of course.
STRANGER: Then, as would appear, the opposition of a part of the other, and of a part of being, to one another, is, if I may venture to say so, as truly essence as being itself, and implies not the opposite of being, but only what is other than being.
THEAETETUS: Beyond question.