Nay, he replied, ‘suppose’ is not the word—I know it; [B]but you will be found out, and by sheer force of argument you will never prevail.

I shall not make the attempt, my dear man; but to avoid any misunderstanding occurring between us in future, let me ask, in what sense do you speak of a ruler or stronger whose interest, as you were saying, he being the superior, it is just that the inferior should execute—is he a ruler in the popular or in the strict sense of the term?

In the strictest of all senses, he said. And now cheat and play the informer if you can; I ask no quarter at your hands. But you never will be able, never.

The essential meaning of words distinguished from their attributes. [C]And do you imagine, I said, that I am such a madman as to try and cheat, Thrasymachus? I might as well shave a lion.

Why, he said, you made the attempt a minute ago, and you failed.

Enough, I said, of these civilities. It will be better that I should ask you a question: Is the physician, taken in that strict sense of which you are speaking, a healer of the sick or a maker of money? And remember that I am now speaking of the true physician.

A healer of the sick, he replied.

And the pilot—that is to say, the true pilot—is he a captain of sailors or a mere sailor?

A captain of sailors. 19

[D]The circumstance that he sails in the ship is not to be taken into account; neither is he to be called a sailor; the name pilot by which he is distinguished has nothing to do with sailing, but is significant of his skill and of his authority over the sailors.