Who said "A man must face his demons, whether real or imagined."?

This quote is attributed to Dr. John Watson.

A man must face his demons, whether real or imagined. - Dr. John Watson

"A man must face his demons, whether real or imagined."

Dr. John Watson Courage

Character in The Hound of the Baskervilles

Buy "The Hound of the Baskervilles" on Amazon

"I am not a very good subject for a novelist."

"The greatest happiness the greatest number."

"We are not beaten yet."

"Justice, however delayed, is not denied."

"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."