BOY: I do.

SOCRATES: And you know that a square figure has these four lines equal?

BOY: Certainly.

SOCRATES: And these lines which I have drawn through the middle of the
square are also equal?

BOY: Yes.

SOCRATES: A square may be of any size?

BOY: Certainly.

SOCRATES: And if one side of the figure be of two feet, and the other side
be of two feet, how much will the whole be? Let me explain: if in one
direction the space was of two feet, and in the other direction of one
foot, the whole would be of two feet taken once?

BOY: Yes.

SOCRATES: But since this side is also of two feet, there are twice two
feet?

BOY: There are.

SOCRATES: Then the square is of twice two feet?