4 And I have seen how much effort* and skillful work spring from rivalry between people;+ this too is futility, a chasing after the wind.

7 For who makes you different from another? Indeed, what do you have that you did not receive?+ If, in fact, you did receive it, why do you boast as though you did not receive it?

4 But let each one examine his own actions,+ and then he will have cause for rejoicing in regard to himself alone, and not in comparison with the other person.+