Who said "I can't do this alone."?

This quote is attributed to John Watson.

I can't do this alone. - John Watson

"I can't do this alone."

John Watson Courage

"I'm a doctor, not a magician."

"You know what? I don't actually care what you think."

"Afghanistan or Iraq?"

"How did you know about the bullet wound?"

"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."