Related:

• Never try to outstubborn a cat. -- Lazarus Long
• Never try to outstubborn a cat. -- Lazarus Long, "Time Enough for Love
• Never try to out-stubborn a cat. -- Lazarus Long, from Robert A. Heinlein's "Time Enough For Love
• Never trust a smiling cat.
• Long's Notes 1) Always store beer in a dark place.
  2) Any priest or shaman must be presumed guilty until proved innocent....
• And never, never try to milk a bull!
• In order to be, never try to seem.