Who said "Sometimes the hardest thing is simply being yourself."?

This quote is attributed to Sully.

Sometimes the hardest thing is simply being yourself. - Sully

"Sometimes the hardest thing is simply being yourself."

Sully Courage

"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."

"Never let fear stop you from chasing your dreams."

"Courage is being afraid but doing it anyway."

"Sometimes you gotta do what you gotta do."

"Sometimes you have to be the monster to stop the monsters."