“Madness is the emergency exit. You can just step outside, and close the door on all those dreadful things that happened. You can lock them away…forever."
The Joker”

“Attendants, will you please close and lock the doors?”

“They say that if you can stay away from bullfighting for a year you can stay away from it forever. That is not true but it has some truth in it and, except for fights in Mexico, I had been away for fourteen years. A lot of that time though was like being in jail except that I was locked out; not locked in.”

“No one can really help you. No one can open your doors. You locked them up, and only you can open them. When you open any door, beyond it you find others standing there who had passed you long ago, but now, unable to proceed, they are there waiting; others are there waiting for you. Then you come, and, opening a door, those waiting disciples perhaps may pass on; thus on and on. What a privilege this, to reflect that we may perhaps be able to help those who seemed greater than ourselves!”

“Enough madness? Enough? And how do you measure madness? - The Joker”

“Open your eyes and see what you can with them before they close forever.”

“I’m not totally mad at you. I’m just sad. You’re all locked up in that little world of yours, and when I try knocking on the door, you just sort of look up for a second and go right back inside.”

“You can knock on a deaf man's door forever.”

“Laughter, along with madness, seemed to be the only way out, the emergency exit for humans.”

“Who will be at Sanssouci tonight?
It's only when you're outside that you notice
Only through the window you can see them
Once the door is open, all will vanish.”