Of course, it's very easy to be witty tomorrow, after you get a chance to do some research and rehearse your ad libs.
Source: In Quotations to Cheer You Up When the World is Getting You Down, by Allen Klein, 1991.
-- Joey Adams, (Jan 6 1911-1999), US comedian, author; He is a nightclub and film performer who starred in Joey Adams TV show, 1956-58.