quickly. Are all things then done well? By no means! but the acts which proceed from right opinions are done well; and those which proceed from bad opinions are done ill. But do you, until you know the opinion from which a man does each thing, neither praise nor blame the act. But the opinion is not easily discovered from the external things (acts). This man is a carpenter. Why? Because he uses an axe. What then is this to the matter? This man is a musician because he sings. And what does that signify? This man is a philosopher. Because he wears a cloak and long hair. And what does a juggler wear? For this reason if a man sees any philosopher acting indecently, immediately he says, See what the philosopher is doing; but he ought because of the man's indecent behaviour rather to say that he is not a philosopher. For if this is the preconceived notion (πρόληψις) of a philosopher and what he professes, to wear a cloak and long hair, men would say well; but if what he professes is this rather, to keep himself free from faults, why do we not rather, because he does not make good his professions, take from him the name of philosopher? For so we do in the case of all other arts. When a man sees another handling an axe badly, he does not say, what is the use of the carpenter's art? See how badly carpenters do their work; but he says just the contrary, This man is not a carpenter, for he uses an axe badly. In the same way if a man hears another singing badly, he does not say, See how musicians sing; but rather, This man is not a musician. But it is in the matter of philosophy only that people do this. When they see a man acting contrary to the profession of a philosopher, they do not take away his title, but they assume him to be a philosopher, and from his acts deriving the fact that he is behaving indecently they conclude that there is no use in philosophy.
What then is the reason of this? Because we attach value to the notion (πρόληψιν) of a carpenter, and to that of a musician, and to the notion of other artisans in like manner, but not to that of a philosopher, and we judge from externals only that it is a thing confused and ill defined. And what other kind of art has a name from the
