Ecclesiastes 5:16-18

And this, too, is a very serious problem. People leave this world no better off than when they came. All their hard work is for nothing—like working for the wind. Throughout their lives, they live under a cloud—frustrated, discouraged, and angry. Even so, I have noticed one thing, at least, that is good. It is good for people to eat, drink, and enjoy their work under the sun during the short life God has given them, and to accept their lot in life.