MAGIC THEATER
ENTRANCE NOT FOR EVERYBODY
I tried to open the door, but the heavy old latch would not stir. The display too was over. It had suddenly ceased, sadly convinced of its uselessness. I took a few steps back, landing deep into the mud, but no more letters came. The display was over. For a long time I stood waiting in the mud, but in vain.
Then, when I had given up and gone back to the alley, a few colored letters were dropped here and there, reflected on the asphalt in front of me. I read:
FOR MADMEN ONLY!

p. 32 - Steppenwolf (1927)