The greatest battles are often the ones we fight within ours... - Natasha Romanoff (Civil War)

"The greatest battles are often the ones we fight within ourselves."

Natasha Romanoff (Civil War) Perseverance

More from Natasha Romanoff (Civil War)

"Sometimes I see the mission the same way you do."

"We've made mistakes. But we're still a family."

"I know this job. We both do."

"When you can live with it, let me know."

"Perseverance is the key to success."

"Don't give up on what you believe in."

"I've been through worse."

"You learn to live with the pain."