STRANGER: Being, then, according to its own nature, is neither in motion nor at rest.
THEAETETUS: That is very much the truth.
STRANGER: Where, then, is a man to look for help who would have any clear or fixed notion of being in his mind?
THEAETETUS: Where, indeed?
STRANGER: I scarcely think that he can look anywhere; for that which is not in motion must be at rest, and again, that which is not at rest must be in motion; but being is placed outside of both these classes. Is this possible?
THEAETETUS: Utterly impossible.
STRANGER: Here, then, is another thing which we ought to bear in mind.
THEAETETUS: What?
STRANGER: When we were asked to what we were to assign the appellation of not-being, we were in the greatest difficulty:—do you remember?
THEAETETUS: To be sure.