The dialogues of Plato in five volumes, Vol. 2 (of 5) : $b Translated into English with analyses and introductions
Plato · en
[Sidenote: _Socrates and the boy._]
_Soc._ Let us describe such a figure: Would you not say
that this is the figure of eight feet?
[Illustration]
_Boy._ Yes.
_Soc._ And are there not these four divisions in the figure,
each of which is equal to the figure of four feet?
_Boy._ True.
_Soc._ And is not that four times four?
_Boy._ Certainly.
_Soc._ And four times is not double?
_Boy._ No, indeed.
_Soc._ But how much?
_Boy._ Four times as much.
_Soc._ Therefore the double line, boy,
has given a space, not twice, but four times as much.
_Boy._ True.
_Soc._ Four times four are sixteen—are they not?
_Boy._ Yes.
_Soc._ What line would give you a space of eight feet, as
this gives one of sixteen feet;—do you see?
_Boy._ Yes.
_Soc._ And the space of four feet is made from this half
line?
_Boy._ Yes.
_Soc._ Good; and is not a space of eight feet twice the
size of this, and half the size of the other?
_Boy._ Certainly.
_Soc._ Such a space, then, will be made out of a line greater
than this one, and less than that one?
_Boy._ Yes; I think so.
_Soc._ 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.
[Sidenote: He has now learned to realize his own ignorance, and therefore
will endeavour to remedy it.]
_Soc._ 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.
_Soc._ Try and see if you can tell me how much it will be.
_Boy._ Three feet.
[Sidenote: _The progress of the boy’s education._]
_Soc._ 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.
_Soc._ But if there are three feet this way and three feet
that way, the whole space will be three times three feet?
_Boy._ That is evident.
_Soc._ And how much are three times three feet?
_Boy._ Nine.
_Soc._ And how much is the double of four?
_Boy._ Eight.
_Soc._ Then the figure of eight is not made out of a line of
three?
_Boy._ No.
_Soc._ But from what line?—tell me exactly; and if you 84
would rather not reckon, try and show me the line.
_Boy._ Indeed, Socrates, I do not know.
_Soc._ Do you see, Meno, what advances he has made in his
power of recollection? He did not know at first, and he
does not know now, what is the side of a figure of eight feet:
but then he thought that he knew, and answered confidently
as if he knew, and had no difficulty; now he has a difficulty,
and neither knows nor fancies that he knows.
_Men._ True.