‘[Absorption in one’s personal life] is, you know,’ Poirot persisted, ‘a form of humility. And humility is valuable. There was a slogan that was written up in your underground railways here, I remember, during the war. “It all depends on you.” It was composed, I think, by some eminent divine– but in my opinion it was a dangerous and undesirable doctrine. For it is not true. Everything does not depend on, say, Mrs Blank of Little-Blank-in-the-Marsh. And if she is led to think it does, it will not be good for her character. While she thinks of the part she can play in world affairs, the baby pulls over the kettle.’
‘You are rather old-fashioned in your views, I think. Let’s hear what your slogan would be.’
‘I do not need to formulate one of my own. There is an older one in this country which contents me very well.’
‘What is that?’
‘ “Put your trust in God, and keep your powder dry.” ‘
-Dead Man’s Folly
Seven Storeys High 