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The excerpt represents the core issue or deciding factor on which you must meditate, and is drawn from Ion by Plato: thing which any man might say: that when a man has acquired a knowledge of
a whole art, the enquiry into good and bad is one and the same. Let us
consider this matter; is not the art of painting a whole?
ION: Yes.
SOCRATES: And there are and have been many painters good and bad?
ION: Yes.
SOCRATES: And did you ever know any one who was skilful in pointing out
the excellences and defects of Polygnotus the son of Aglaophon, but
incapable of criticizing other painters; and when the work of any other
painter was produced, went to sleep and was at a loss, and had no ideas;
but when he had to give his opinion about Polygnotus, or whoever the
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