Ecclesiastes

Light is sweet! and it is pleasant for the eyes to see the sun, However, many years a man may live, let him as he enjoys them all, remember that the days of darkness will be many. All that is to come is vanity.

Rejoice, O young man, while you are young, and let your heart be glad in the days of your youth. Follow the ways of your heart, the vision of your eyes; Yet understand that as regards all this God will bring you to judgement.

Ward off grief from your heart and put away trouble from your presence, though the dawn of youth is fleeting.