'BIRLING: Yes, my dear, I know - I'm talking too much. But you youngsters just remember what I said. We can't let these Bernard Shaws and H.G. Wellses do all the talking. We hardheaded practical business men must say something sometime. And we don't guess - we've had experience - and we know.' Which of the following is true of this character from J.B. Priestley's play, An Inspector Calls?