Who said "You can't teach an old dog new tricks."?

This quote is attributed to Red Forman.

You can't teach an old dog new tricks. - Red Forman

"You can't teach an old dog new tricks."

Red Forman Nature

"My foot in your ass."

"Dumbass."

"I'm gonna put my foot in your ass."

"That's what I love about these high school girls, man. I get older, they stay the same age."

"Nature teaches us about beauty."

"Nature teaches us patience and wisdom"

"Sometimes it snows in April."

"Every town has a soul, and Twin Peaks has a troubled one."