The Republic by Plato Part 3 Page 30

whether the poets, in narrating their stories, are to be allowed by us to imitate, and if so, whether in whole or in part, and if the latter, in what parts; or should all imitation be prohibited?

You mean, I suspect, to ask whether tragedy and comedy shall be admitted into our State?

Yes, I said; but there may be more than this in question: I really do not know as yet, but whither the argument may blow, thither we go.

And go we will, he said.

Then, Adeimantus, let me ask you whether our guardians ought to be imitators; or rather, has not this question been decided by the rule already laid down that one man can only do one thing well, and not many; and that if he attempt many, he will altogether fail of gaining much reputation in any?