SOCRATES: But all the parts are admitted to be the all, if the entire number is the all?
THEAETETUS: True.
SOCRATES: Then the whole is not made up of parts, for it would be the all, if consisting of all the parts?
THEAETETUS: That is the inference.
SOCRATES: But is a part a part of anything but the whole?
THEAETETUS: Yes, of the all.
SOCRATES: You make a valiant defence, Theaetetus. And yet is not the all that of which nothing is wanting?
THEAETETUS: Certainly.
SOCRATES: And is not a whole likewise that from which nothing is absent? but that from which anything is absent is neither a whole nor all;—if wanting in anything, both equally lose their entirety of nature.
THEAETETUS: I now think that there is no difference between a whole and all.