Ecclesiastes 2:10

2:10 I did not restrain myself from getting whatever I wanted;

I did not deny myself anything that would bring me pleasure.

So all my accomplishments gave me joy;

this was my reward for all my effort.

Ecclesiastes 10:10

10:10 If an iron axhead is blunt and a workman does not sharpen its edge,

he must exert a great deal of effort;

so wisdom has the advantage of giving success.