Known sourcecanonical
"Man's life is like unto a winter's day,-- Some break their fast and so depart away; Others stay dinner, then depart full fed; The longest age but sups and goes to bed. O reader, then behold and see! As we are now, so must you be."
Joseph Henshaw / Horæ Sucissive (1631).
Horæ Sucissive (1631).
Bartlett's Familiar Quotations, 9th ed. (Little, Brown, 1905), public domain