Related:

• Nil taurus excretum. No El Toro Poopoo either!
• So, naturalists observe, a flea Has smaller fleas that on him prey
  And these have smaller still to bite 'em; And so proceed ad infinitum....
• Systems have sub-systems and sub-systems have sub-systems and so on ad infinitum -- which is why we're always starting over.
  -- Epigrams in Programming, ACM SIGPLAN Sept. 1982...
• Astrology... just a bunch of Taurus.