Eclesiastés 10

If the ax is blunt but one does not sharpen its edge, ⌞he must exert more effort⌟, but the advantage of wisdom is it brings success.

Si se embotare el hierro, y su filo no fuere amolado, hay que añadir entonces más fuerza: empero excede la bondad de la sabiduría.

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.

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