“I'd never join a club that would allow a person like me to become a member.”

On the "Just Say No to Drugs Week" (1986), as quoted in "JUST SAY NO" at The Ronald Reagan Foundation http://www.reaganfoundation.org/details_f.aspx?p=RR1008NRHC&tx=6
Context: Someone asked me if I wanted to make a New Year’s wish, and I said yes — and it was that I’d like to see every young person in the world join the "Just Say No" to drugs club. Well, just the fact that Congress has proclaimed "Just Say No Week" and in light of all the activities taking place, it seems that my wish is well on its way to coming true.

Telegram to the Friar's Club of Beverly Hills to which he belonged, as recounted in Groucho and Me (1959), p. 321

"Intimations" (December 1941)
One Man's Meat (1942)
Context: Before you can be an internationalist you have first to be a naturalist and feel the ground under you making a whole circle. It is easier for a man to be loyal to his club than to his planet; the bylaws are shorter, and he is personally acquainted with the other members. A club, moreover, or a nation, has a most attractive offer to make: it offers the right to be exclusive. There are not many of us who are physically constituted to resist this strange delight, this nourishing privilege. It is at the bottom of all fraternities, societies, orders. It is at the bottom of most trouble. The planet holds out no such inducement. The planet is everybody's. All it offers is the grass, the sky, the water, the ineluctable dream of peace and fruition.

Quoted in "The Butcher of Lyon: The Story of Infamous Nazi Klaus Barbie" - Page 140 - by Brendan Murphy - History - 1983

As quoted in The Groucho Letters (1967) by Arthur Sheekman. The sentiment predates Marx by 61 years, however; it likely originated with John Galsworthy in The Forsyte Saga. In Part I, Chapter II, "Old Jolyon Goes to the Opera" http://www.gutenberg.org/etext/2559, it's said of Old Jolyon that, "He naturally despised the Club that did take him." after another refused him because he was in a trade.
Variant: I sent the club a wire stating: «Please accept my resignation. I don't want to belong to any club that will accept me as a member».
Source: Groucho and Me

Keep the Aspidistra Flying (1936)

Richard Dowden, "Mugabe: Commonwealth is 'Animal Farm'", Independent on Sunday, 7 December 2003.
Speech to ZANU-PF Congress, 6 December 2003.
2000s, 2000-2004

Source: The Complete Calvin and Hobbes

Source: The Bell Jar