do you say we get the double space from the double line? The space I speak of is not long one way and short the other, but must be equal each way like this one, while being double its sizeâ€”eight square feet. Now see if you still think we get this from a double length of line.

BoyI do.

SocratesWell, this line is doubled, if we add here another of the same length?

BoyCertainly.

SocratesAnd you say we shall get our eight-foot space from four lines of this length?

BoyYes.