Related:

• If at first you don't succeed, try try again. Then quit. No use being a damn fool about it.
• If at first you don't succeed, quit. Don't be a nut about success.
• If at first you don't succeed, quit; don't be a nut about success.
• If at first you don't succeed, try, try again. Then quit.
  No use being a damn fool about it. -- W.C. Fields [Also attributed to Roy Mengot. Ed.]...
• If at first you don't succeed, give up, no use being a damn fool.
• Sometimes I worry about being a success in a mediocre world. -- Lily Tomli