For a man may do his work with wisdom, knowledge, and skill; however, he must hand over ¹  the fruit of his labor ²  as an inheritance ³  to someone else who did not work for it. This also is futile, and an awful injustice! ⁴ 

So I perceived there is nothing better than for people ¹  to enjoy their work, ²  because that is their ³  reward; for who can show them what the future holds? ⁴ 

I have seen personally what is the only beneficial and appropriate course of action for people: ¹  to eat and drink, ²  and find enjoyment in all their ³  hard work ⁴  on earth ⁵  during the few days of their life which God has given them, for this is their reward. ⁶ 

To every man whom God has given wealth, and possessions, he has also given him the ability ¹  to eat from them, to receive his reward and to find enjoyment in his toil; these things ²  are the gift of God.