Who said "I've learned that patience is its own kind of power."?

This quote is attributed to Hawkeye / Clint Barton.

I've learned that patience is its own kind of power. - Hawkeye / Clint Barton

"I've learned that patience is its own kind of power."

Hawkeye / Clint Barton Patience

"I'm just a guy with a bow and arrow."

"Sometimes the smallest things take up the most room in your heart."

"You know what the problem is? You're always looking for the next big thing, when sometimes it's right in front of you."

"I can't miss. Well, I can miss, but I don't very often."

"Patience is a virtue I'm still learning."

"I may be a redhead, but I'm not a hothead."

"Patience is a virtue."

"Patience is a virtue I never learned."