Quote from : Batman: The Killing Joke Book

MEMORY'S SO ONE MOMENT YOU'RE LOST IN A OF WITH POIGNANT CHILDHOOD , THE FLASHING NEON OF ALL THAT SENTIMENTAL ... THE , IT LEADS YOU SOMEWHERE YOU DON'T WANT TO ...SOMEWHERE AND FILLED WITH THE DAMP, AMBIGUOUS SHAPES OF THINKS YOU'D HOPED WERE CAN BE LITTLE LIKE I SUPPOSE. BUT CAN WE LIVE THEM? ARE WHAT OUR IS BASED UPON. IF WE CAN'T THEM, WE DENY REASON ITSELF! ALGHOUGH, WHY WE AREN'T TO THERE NO SO WHEN YOU FIND YOURSELF LOCKED ONTO AN UNPLEASANT TRAIN OF THOUGHT, HEADING FOR THE PLACES IN YOUR PAST WHERE THE SCREAMING IS REMEMBER THERE'S ALWAYS IS THE YOU CAN JUST STEP AND CLOSE THE DOOR ON ALL THOSE DREADFUL THINGS THAT HAPPENED. YOU CAN LOCK THEM FOREVER.