Such love must needs be treason in my breast:
In second husband let me be accurst!
None wed the second but who kill’d the first.

– William Shakespeare

Hamlet, Act 3, Scene 2. The Player Queen says this in response to the Player King’s suggestion that she should remarry upon his death. Only a woman who killed her first husband would marry a second, she comments. This is spoken during the performance of The Murder of Gongazo (or Mousetrap).