Who said "I've learned that hope is the most powerful weapon of all."?

This quote is attributed to Captain America.

I've learned that hope is the most powerful weapon of all. - Captain America

"I've learned that hope is the most powerful weapon of all."

Captain America Hope

"I can do this all day."

"When I first arrived at Camp Lehigh, I was just a scrawny kid from Brooklyn. But I learned that being a soldier isn't about size or strength."

"There are men laying down their lives. I got no right to do any less than them."

"I'm just a kid from Brooklyn. I can't do this."

"Every day is a new opportunity."

"Hope is what gets us through difficult times."

"I'm not your enemy, kid. I'm trying to save you."

"Redemption is a long road."