Who said "If something is hard to do, then it's not worth doing."?

This quote is attributed to Ralph Wiggum.

If something is hard to do, then it's not worth doing. - Ralph Wiggum

"If something is hard to do, then it's not worth doing."

Ralph Wiggum Wisdom

"I'm in danger."

"Me fail English? That's unpossible."

"Eat my shorts."

"Ay caramba!"

"I'm not angry, I'm just disappointed."

"The best things in life are free."

"You can't have everything in life, but you can have what matters most."

"A woman's intuition is rarely wrong."