Laff every good chance ya kan git, but don’t laff unless yu feal like it, for there ain’t nothing in this world more harty than a good honest laff, nor nothing more hoollow than a hartless one.

[Laugh every good chance you can get, but don’t laugh unless you feel like it, for there ain’t nothing in this world more hearty than a good, honest laugh, nor nothing more hollow than a heartless one.]

Josh Billings (1818-1885) American humorist, aphorist [pseud. of Henry Wheeler Shaw]

Everybody’s Friend, Or; Josh Billing’s Encyclopedia and Proverbial Philosophy of Wit and Humor, “Laffing” (1874)