Ecclesiastes 11:7-10

7Truly the lightissweet, and a pleasantthing it is for the eyes to behold the sun: 8But if a man shall live many years, and rejoice in them all; yet let him remember the days of darkness; for they shall be many. All that cometh is vanity. 9Rejoice, O young man, in thy youth; and let thy heart cheer thee in the days of thy youth, and walk in the ways of thy heart, and in the sight of thy eyes: but know thou, that for all these things God will bring thee into judgment. 10Therefore remove sorrow from thy heart, and put away evil from thy flesh: for childhood and youth are vanity.1