Ich glaube, mann sollte u«  berhaupt nur solche Bu«  cher lesen, die einen beiÞen und stechen. I think we ought to read only the kind of books that wound and stab us.

-Kafka, Franz
  Letter to Oskar Pollack. Collected in Richard and Clara Winston (eds and trans) Letters to Friends, Family, and Editors (1977).

If somebody's gonna stab me in the back, I wanna be there.

-Lamport, Allan
  Quotations from Chairman Lamport.

I saw him stab And stab again A well-killed Boche.

-Read, Sir Herbert Edward
  NakedWarriors,'The Scene of War, 4.The HappyWarrior'.