Plato : POLITEIA Persons of the dialogue: Socrates - Glaucon - Polemarchus  - Adeimantus - Cephalus - Thrasymachus - Cleitophon Translated by Benjamin Jowett - 77 Pages (Part 3) - Greek fonts Search Plato's works / Plato Anthology / The Greek Word Library = Note by Elpenor

POLITEIA part 3 of 4, 5

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This Part: 77 Pages

Part 3 Page 46

Being is the sphere or subject-matter of knowledge, and knowledge is to know the nature of being?

Yes.

And opinion is to have an opinion?

Yes.

And do we know what we opine? or is the subject-matter of opinion the same as the subject-matter of knowledge?

Nay, he replied, that has been already disproven; if difference in faculty implies difference in the sphere or subject matter, and if, as we were saying, opinion and knowledge are distinct faculties, then the sphere of knowledge and of opinion cannot be the same.

Then if being is the subject-matter of knowledge, something else must be the subject-matter of opinion?

Yes, something else.

Well then, is not-being the subject-matter of opinion? or, rather, how can there be an opinion at all about not-being? Reflect: when a man has an opinion, has he not an opinion about something? Can he have an opinion which is an opinion about nothing?

Impossible.

He who has an opinion has an opinion about some one thing?

Yes.

And not-being is not one thing but, properly speaking, nothing?

True.

Of not-being, ignorance was assumed to be the necessary correlative; of being, knowledge?

True, he said.

Then opinion is not concerned either with being or with not-being?

Not with either.

And can therefore neither be ignorance nor knowledge?

That seems to be true.

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