“An amateur practices something until he gets it right.A professional practices until he can't get it wrong!”

“An ordinary archer practices until he gets it right. A ranger practices until he never gets it wrong.”

“Amateurs train until they get it right. Professionals train until they cannot get it wrong.”

“The anateur works until they get something right. The professional works until they can't go wrong.”

“It is a rule of this world that people are considerate of those they love and unfeeling toward those they do not love, but this man had a heart that made no such distinctions.”

“The supernatural can be very annoying until one finds the key that transforms it into science," he observed mildly... "Come on, Ox, let's go out and get killed.”

“Can they, like get fingerprints from her neck? Can they catch the guy that way?”“This guy isn’t an amateur. He probably used gloves.”“How do you know he isn’t an amateur, Sherlock?”“There’s bruising on the left-hand knuckles, and on the sides of both hands. Probably would be on the right-hand knuckles, too, if we had them.”“She hit him,” Howie said. “She fought back.”