Ecclesiastes 10 10
If your ax is blunt and you don't sharpen it, you have to use a lot more force. Conclusion: being wise brings good results.
Compare with other 3 random translations
AMP Ecclesiastes 10:10If the axe is dull and he does not sharpen its edge, then he must exert more strength; but wisdom [to sharpen the axe] helps him succeed [with less effort].
ERV Ecclesiastes 10:10But wisdom will make any job easier. It is very hard to cut with a dull knife. But if you sharpen the knife, the job is easier.
LSV Ecclesiastes 10:10If the iron has been blunt, and he has not sharpened the face, then he increases strength, and wisdom is advantageous to make right.