There's No Business Like Show Business.

-Berlin, Irving originally Israel Baline
  Title of song from the film  Annie GetYour Gun.

   The opening-night audience is mostly friends of the cast and backers of the show, and they cometo applaud their money.

-Hirschfeld, Al
  In the NewYork Times, 21  Jun.

   Show me a sane man and I will cure him for you.

-Jung, Carl Gustav
Quoted in the Observer,19  Jul1975.

   In the established sense it issocially nil.Happy-go-lucky, don't-you-bother, we're-in-Australia. But there also seems to be no inside life of any sort: just a long lapse and drift. A rather fascinating indifference, a physical indifference to what we call soul or spirit. It's really a weird show.

-Lawrence, D(avid) H(erbert)
  Of  Australia. Letter, collected in  A Huxley (ed)  The Letters of D H Lawrence (1932).

The Last Picture Show.

-McMurtry, LarryJeff
   Title of novel, subsequently filmed.

No woman has to prove herself a woman in the grim way a man has to prove himself a man. He must perform, or the show does not go on. Social convention is irrelevant. A flop is a flop.

-Pagels, Heinz R(udolf)
  Sexual Personae: Art and Decadence from Nefertiti to Emily Dickinson, ch.1,'Sex andViolence, or Nature and Art'.

The waves beside them danced; but they Out-did the sparkling waves in glee: A poet could not but be gay, In such a jocund company: I gazedöand gazedöbut little thought What wealth the show to me had brought.

-Wordsworth,William
  'I wandered lonely as a cloud', stanza 3 (published1807).