Who said "The real battle isn't physical. It's internal."?

This quote is attributed to Winter Soldier.

The real battle isn't physical. It's internal. - Winter Soldier

"The real battle isn't physical. It's internal."

Winter Soldier Philosophy

"I'm not the Winter Soldier anymore."

"Seventy years. That's a long time to carry ghosts."

"Sometimes the best thing you can do is let go."

"I've done terrible things. I can't erase that."

"I've seen the worst humanity has to offer."

"Sometimes I wonder if the world is worth saving."

"Every choice shapes our destiny."

"Order is the foundation of a good life."