For if a man should live many years, let him rejoice in them all, and let him remember the days of darkness, since they will be many. All that comes is futile.
Rejoice, young man, while you are young, and let your heart be glad in the days of your youth. And walk in the ways of your heart and in the sights of your eyes; but know that for all of these things God will bring you to judgment.
References for Ecclesiastes 11:9