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SOCRATES: Do you observe, Meno, that I am not teaching the boy anything, but only asking him questions; and now he fancies that he knows how long a line is necessary in order to produce a figure of eight square feet; does he not?
MENO: Yes.
SOCRATES: And does he really know?
MENO: Certainly not.
SOCRATES: He only guesses that because the square is double, the line is double.
MENO: True.
SOCRATES: Observe him while he recalls the steps in regular order. (To the Boy:) Tell me, boy, do you a.s.sert that a double s.p.a.ce comes from a double line? Remember that I am not speaking of an oblong, but of a figure equal every way, and twice the size of this--that is to say of eight feet; and I want to know whether you still say that a double square comes from double line?
BOY: Yes.
SOCRATES: But does not this line become doubled if we add another such line here?
BOY: Certainly.
SOCRATES: And four such lines will make a s.p.a.ce containing eight feet?
BOY: Yes.
SOCRATES: Let us describe such a figure: Would you not say that this is the figure of eight feet?
BOY: Yes.
SOCRATES: And are there not these four divisions in the figure, each of which is equal to the figure of four feet?
BOY: True.
SOCRATES: And is not that four times four?
BOY: Certainly.
SOCRATES: And four times is not double?
BOY: No, indeed.
SOCRATES: But how much?
BOY: Four times as much.
SOCRATES: Therefore the double line, boy, has given a s.p.a.ce, not twice, but four times as much.
BOY: True.
SOCRATES: Four times four are sixteen--are they not?
BOY: Yes.
SOCRATES: What line would give you a s.p.a.ce of eight feet, as this gives one of sixteen feet;--do you see?
BOY: Yes.
SOCRATES: And the s.p.a.ce of four feet is made from this half line?
BOY: Yes.
SOCRATES: Good; and is not a s.p.a.ce of eight feet twice the size of this, and half the size of the other?
BOY: Certainly.
SOCRATES: Such a s.p.a.ce, then, will be made out of a line greater than this one, and less than that one?
BOY: Yes; I think so.
SOCRATES: Very good; I like to hear you say what you think. And now tell me, is not this a line of two feet and that of four?
BOY: Yes.
SOCRATES: Then the line which forms the side of eight feet ought to be more than this line of two feet, and less than the other of four feet?
BOY: It ought.
SOCRATES: Try and see if you can tell me how much it will be.
BOY: Three feet.
SOCRATES: Then if we add a half to this line of two, that will be the line of three. Here are two and there is one; and on the other side, here are two also and there is one: and that makes the figure of which you speak?
BOY: Yes.
SOCRATES: But if there are three feet this way and three feet that way, the whole s.p.a.ce will be three times three feet?
BOY: That is evident.
SOCRATES: And how much are three times three feet?
BOY: Nine.
SOCRATES: And how much is the double of four?
BOY: Eight.
SOCRATES: Then the figure of eight is not made out of a line of three?
BOY: No.
