A man who cannot adapt cannot survive. - John Watson

"A man who cannot adapt cannot survive."

John Watson Perseverance

More from John Watson

"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?"

"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."