Certainly.
The one then, being of this nature, is of necessity both at rest and in motion?
How?
The one is at rest since it is in itself, for being in one, and not passing out of this, it is in the same, which is itself.
True.
And that which is ever in the same, must be ever at rest?
Certainly.
Well, and must not that, on the contrary, which is ever in other, never be in the same; and if never in the same, never at rest, and if not at rest, in motion?
True.
Then the one being always itself in itself and other, must always be both at rest and in motion?