Who said "Sometimes doing the right thing means standing alone."?

This quote is attributed to Steve Rogers.

Sometimes doing the right thing means standing alone. - Steve Rogers

"Sometimes doing the right thing means standing alone."

Steve Rogers Courage

"I can do this all day."

"When I was young, I had big dreams. I wanted to serve my country."

"I'm not looking for forgiveness, and I'm way past asking permission."

"The strong man who has known hard labour, and strife and defeat, is alone capable of striving, of enduring, and of actually conquering."

"Never let fear stop you from chasing your dreams."

"Courage is being afraid but doing it anyway."

"Sometimes you gotta do what you gotta do."

"Sometimes you have to be the monster to stop the monsters."