There is no such utterance in the Demodocus. But in the Amatores, Basle Edition, p. 237, Plato says: “But it is not so, my friend; nor is it philosophizing to occupy oneself in the arts, nor lead a life of bustling meddling activity, nor to learn many things: but it is something else. Since I, at least, would reckon this a reproach; and that those who devote themselves to the arts ought to be called mechanics.”