¹⁰ If the axe is blunt, and one doesn’t sharpen the edge, then he must use more strength; but skill brings success.

¹⁰ If the iron is blunt, and one does not whet the edge, then more strength must be exerted; but wisdom helps one to succeed.

¹⁰ If the ax is dull and its edge unsharpened, more strength is needed, but skill will bring success.