SOCRATES: Again, the number of the acre and the acre are the same; are they not?
THEAETETUS: Yes.
SOCRATES: And the number of the stadium in like manner is the stadium?
THEAETETUS: Yes.
SOCRATES: And the army is the number of the army; and in all similar cases, the entire number of anything is the entire thing?
THEAETETUS: True.
SOCRATES: And the number of each is the parts of each?
THEAETETUS: Exactly.
SOCRATES: Then as many things as have parts are made up of parts?
THEAETETUS: Clearly.