> In the corridor, the T-1000’s head was lying in two mutilated masses on its shoulders. **The concept of pain had never factored into the sensory sphere of the liquid machine. Pain was an indicator of damage to a part of the organism.**

-From the Randall Frakes [novelization][1] of *Terminator 2*

  [1]: http://terminator.wikia.com/wiki/Terminator_2:_Judgment_Day_%28Frakes_novel%29