Who said "Keep pushing forward, that's all you can do."?

This quote is attributed to Moe Szyslak.

Keep pushing forward, that's all you can do. - Moe Szyslak

"Keep pushing forward, that's all you can do."

Moe Szyslak Perseverance

"I'm not a smart man, but I know what love is."

"You want something, you gotta work for it. That's life."

"The key to happiness is lowering your expectations."

"Friends are the family you choose for yourself."

"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."