THEAETETUS: Very likely we are.

STRANGER: But, surely, motion and rest are neither the other nor the

same.

THEAETETUS: How is that?

STRANGER: Whatever we attribute to motion and rest in common, cannot be

either of them.

THEAETETUS: Why not?

STRANGER: Because motion would be at rest and rest in motion, for either

of them, being predicated of both, will compel the other to change into

the opposite of its own nature, because partaking of its opposite.

THEAETETUS: Quite true.

STRANGER: Yet they surely both partake of the same and of the other?

THEAETETUS: Yes.

STRANGER: Then we must not assert that motion, any more than rest, is

either the same or the other.

101

Sophist