It ought.
And that would require that the one should be two, and be in two places at once, and this, while it is one, will never happen.
No.
Then the one cannot touch itself any more than it can be two?
It cannot.
Neither can it touch others.
Why not?
The reason is, that whatever is to touch another must be in separation from, and next to, that which it is to touch, and no third thing can be between them.
True.
Two things, then, at the least are necessary to make contact possible?