“It’s kind of fun to do the impossible”

Entry in progress—B.P.
“It’s kind of fun to do the impossible” is a quote attributed to Wal Disney 1901-1966) that has been printed on any posters.
 
Wikiquote: Walt Disney
Walter Elias Disney (5 December 1901 – 15 December 1966) was an American film producer, director, screenwriter, voice actor, and animator. One of the most well-known motion picture producers in the world, Disney was also the cartoon artist of comic books and newspaper comic strips, the creator of an American-based theme parks called Disneyland and Walt Disney World, and is the co-founder with his brother Roy O. Disney of Walt Disney Productions, the corporation now known as The Walt Disney Company.
 
Quotes
It’s kind of fun to do the impossible.
. As quoted in Animated Architecture (1982) by Derek Walker, p. 10
 
Google Books
Disneyland
By Walt Disney Productions.
Verona: Arnoldo Mondadori
1964
Pg. 8:
Finally, turning to his associates with a characteristic grin, Disney gave his own completely unscientific conclusion: “Well, it’s kind of fun to do the impossible.”
 
Google Books
Walt Disney’s Disneyland
By Martin A. Sklar
Verona: Mondadori
1965
Pg. ?:
Walt listened to this dreary prediction, then turned to his associates and with a characteristic grin gave his own completely unscientific conclusion: “Well, it’s kind of fun to do the impossible!’
 
Six months later, the Rainbow Caverns opened at Disneyland.