Related:

• In theory, there is no difference between theory and practice. In practice, there is.
• In theory, there is no difference between theory and practice. In practice, however, there is.
• There is no difference between theory and practice in theory, but there is often a great deal of difference between theory and practice in practice.
  -- Chuck Reid...
• In theory, there is no difference between theory and practice; in practice, there is. Chuck Reid
• Quote #350 "You are caught in a maze of twisty little Sendmail rules, all obscure.
  -- _Sendmail: Theory and Practice_, Avolio and Vixie...
• ISM Any distinctive doctrine, theory or practice. -- Daniel Bowen's TOXIC CUSTARPEDIA
• It's all very well in practice, but it will never work in theory. -- French management saying
• Plays that work in theory do not work in practice. Plays that work in practice do not work during the game.
• The theory of liberty, when delivered in a political speech by a candidate
  always sounds far better and contains a great deal more promise than the actual practice of liberty is prepared to give unless the listeners are willing to pay higher taxes....