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Socrates
Soc. Quite right. And now, for what is the good counsel of which you speak?
Alcibiades
Alc. For the better management and preservation of the city.
Socrates
Soc. And what is it that becomes present or absent when we get this better management and preservation? If, for example, you should ask me, What is it that becomes present or absent when the body is better managed and preserved?—I should reply, Health becomes present, and disease absent. Do not you think so too?
Socrates
Soc. And if, again, you asked me, What becomes present in a better condition of the eyes?—I should answer in just the same way, Sight becomes present, and blindness absent. So, in the case of the ears, deafness is caused to be absent, and hearing to be present, when they are improved and getting better treatment.
Socrates
Soc. Well then, what is it that becomes present or absent when a state is improved and has better treatment and management?
Alcibiades
Alc. To my mind, Socrates, friendship with one another will be there, while hatred and faction will be absent.
Socrates
Soc. Now, by friendship do you mean agreement or disagreement?
10
Alcibiades
Alc. Agreement.
Socrates
Soc. And what art is it that causes states to agree about numbers?
Alcibiades
Alc. Arithmetic.
Socrates
Soc. And what of individuals? Is it not the same art?
Socrates
Soc. And it makes each single person agree with himself?
Socrates
Soc. And what art makes each of us agree with himself as to which is the longer, a span or a cubit? Is it not mensuration?
Alcibiades
Alc. Of course.