No

“Where shadows dim with shadows mate,
in caverns deep and dark.
Where old books dream of bygone days,
when they were wood and bark...”
― Walter Moers, The City of Dreaming Books

“Why not ask yourself whether your other dreams are real? You go on trips and undergo the strangest experiences every night. How do you know they only take place in your mind?”
― Walter Moers

“If flatness were funny, a dinner plate would be hilarious.”
― Walter Moers, Rumo & His Miraculous Adventures

“But when there’s light, there’s darkness as well.”
― Walter Moers