Who said "You can't protect everyone, but you try."?

This quote is attributed to Hawkeye (Age of Ultron).

You can't protect everyone, but you try. - Hawkeye (Age of Ultron)

"You can't protect everyone, but you try."

Hawkeye (Age of Ultron)

"It's not what you can do, it's what you will do."

"We're not soldiers. But I've seen worse than this before."

"Family is everything. That's why I fight."

"Sometimes the hardest thing and the right thing are the same."