Known sourcecanonical
"If on my theme I rightly think, There are five reasons why men drink,-- Good wine, a friend, because I 'm dry, Or lest I should be by and by, Or any other reason why."
John Sirmond / Causæ Bibendi.
Causæ Bibendi.
Bartlett's Familiar Quotations, 9th ed. (Little, Brown, 1905), public domain