Who said "You can't just give up when things get hard."?

This quote is attributed to Peter Griffin.

You can't just give up when things get hard. - Peter Griffin

"You can't just give up when things get hard."

Peter Griffin Perseverance

"Shut up, Meg."

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

"Giggity!"

"You know what really grinds my gears?"

"Perseverance is the key to success."

"Don't give up on what you believe in."

"I've been through worse."

"You learn to live with the pain."