Who said "Keep going, even when the path isn't clear."?

This quote is attributed to Sully.

Keep going, even when the path isn't clear. - Sully

"Keep going, even when the path isn't clear."

Sully Perseverance

"I'm not listening to this. We're going back out there."

"We laugh, we cry, we fall in love."

"You really are a bad friend."

"I'm watching you, Wazowski. Always watching. Always."

"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."