Who said "The key to happiness is not thinking about bad stuff."?

This quote is attributed to Peter Griffin.

The key to happiness is not thinking about bad stuff. - Peter Griffin

"The key to happiness is not thinking about bad stuff."

Peter Griffin Happiness

"Shut up, Meg."

"All right, all right, I'm coming, Elizabeth."

"Giggity!"

"You know what really grinds my gears?"

"Babalú!"

"My greatest joy is making people smile."

"Laughter and love make a home."

"The best things in life are free."