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Plainly not.

Neither will he be able to distinguish the pretender in medicine from the true physician, nor between any other true and false professor of knowledge. Let us consider the matter in this way: If the wise man or any other man wants to distinguish the true physician from the false, how will he proceed? He will not talk to him about medicine; and that, as we were saying, is the only thing which the physician understands.

True.

And, on the other hand, the physician knows nothing of science, for this has been assumed to be the province of wisdom.

True.

And further, since medicine is science, we must infer that he does not know anything of medicine.

Exactly.

Then the wise man may indeed know that the physician has some kind of science or knowledge; but when he wants to discover the nature of this he will ask, What is the subject-matter? For the several sciences are distinguished not by the mere fact that they are sciences, but by the nature of their subjects. Is not that true?

Quite true.