For every art remains pure and faultless while remaining true—that is to say, while perfect and unimpaired.
 Plato, The Republic. copy citation

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Author Plato
Source The Republic
Topic art
Date
Language English
Reference
Note Translated by Benjamin Jowett
Weblink http://www.gutenberg.org/files/1497/1497-h/1497-h.htm

Context

“Or have they no need either of themselves or of another?—having no faults or defects, they have no need to correct them, either by the exercise of their own art or of any other; they have only to consider the interest of their subject-matter. For every art remains pure and faultless while remaining true—that is to say, while perfect and unimpaired. Take the words in your precise sense, and tell me whether I am not right. Yes, clearly. Then medicine does not consider the interest of medicine, but the interest of the body? True, he said. Nor does the art of horsemanship consider the interests of the art of horsemanship, but the interests of the horse;” source