Who said "Adventure's waiting just beyond your comfort zone."?

This quote is attributed to Heckle and Jeckle.

Adventure's waiting just beyond your comfort zone. - Heckle and Jeckle

"Adventure's waiting just beyond your comfort zone."

Heckle and Jeckle Adventure

"Why be serious when you can be hilarious?"

"Life's too short to not laugh at yourself."

"A good prank shared is a friendship earned."

"Sometimes the best wisdom comes wrapped in a joke."

"The greatest adventure is life itself."

"The adventure of life begins with a single step."

"Adventure finds you when you stop running."

"Fortune and glory, kid."