¹⁰ If the iron be blunt, and he do not whet the edge, then must he put to more strength: but wisdom is profitable to direct.

¹⁰ If the iron be blunt, and one do not whet the edge, then must he put to more strength: but wisdom is profitable to direct.

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