Who said "Change is the only thing that's actually permanent."?

This quote is attributed to Heckle and Jeckle.

Change is the only thing that's actually permanent. - Heckle and Jeckle

"Change is the only thing that's actually permanent."

Heckle and Jeckle Change

"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."

"Change brings new opportunities."

"Every day is a new opportunity."

"Healing doesn't mean forgetting."

"You either get better or you get bitter."