"It's the most amazing story and there is something extraordinarily real about the play. Why is the insight into the fear and terror so authentic? Because Rattigan lived it. The language of stiff upper lip and the understatement of wartime bravery is utterly authentic because it was what he knew and heard all around him in 1941."
January 1, 1970
https://en.wikiquote.org/wiki/Terence_Rattigan