There was always, he thought, this pleasure ahead of him, an ace of joy up his sleeve so he could say you can do anything to me, take everything away, put me in prison, but I will know [her] when we are old.

-Ondaatje, (Philip) Michael
  In the Skin of a Lion,'Remorse'.

To wear your heart on your sleeve isn't a very good plan. You should wear it inside, where it functions best.

-Thatcher, Margaret HildaThatcher, Baroness
  Interview, ABC TV,18 Mar.

You must not wear your heart on your sleeve for daws to pick at. See Shakespeare 758:50.

-Webster, Margaret
c.1940  ToTennesseeWilliams on the out-of-town closing of his first professionally produced play Battle of Angels. Recalled by Williams in the NewYorkTimes,17 Mar1957. Chinese   dissident,    considered   one   of    the   fathers   of    the Chinese  dissident  movement,  released  in 1993  after  serving  a 14-year   jail   sentence   for   his   role   in   the   Democracy   Wall Movement.   He   was   arrested   again   in   April  1994   and   was released in1997.

Sheisso odda blend of Little Nell and Lady Macbeth.It is not so much the familiar phenomenon of a hand of steel in a velvet glove as a lacy sleeve with a bottle of vitriol concealed in its folds.

-Woollcott, Alexander Humphreys
  Of Dorothy Parker.While Rome Burns,'Our Mrs Parker'.