Ecclesiastes 11:8-10

But if a man lives many years And rejoices in them all, Yet let him remember the days of darkness, For they will be many. All that is coming is vanity. Rejoice, O young man, in your youth, And let your heart cheer you in the days of your youth; Walk in the ways of your heart, And in the sight of your eyes; But know that for all these God will bring you into judgment. Therefore remove sorrow from your heart, And put away evil from your flesh, For childhood and youth are vanity.