Houdini — "I do not believe that ghosts or spirits exist."

"I am willing to state that Spiritualism is a fraud of the worst description. I have had a life of sorrow, I have been poor and ill, but I consider it my duty, a sacred thing, a holy mission to expose …"

"If men did not try and get something for nothing they might often be able to retain that which they have."

"The only way to get rid of a temptation is to yield to it."

"Doors only lock, Because enemy within scares more than outside."

"The easiest way to attract a crowd is to let it be known that at a given time and a given place someone is going to attempt something that in the event of failure will mean sudden death."