Who said "I've made mistakes, but I don't let them stop me."?

This quote is attributed to Hawkeye / Clint Barton.

I've made mistakes, but I don't let them stop me. - Hawkeye / Clint Barton

"I've made mistakes, but I don't let them stop me."

Hawkeye / Clint Barton

"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."