. . . the fellow's got a bee in his bonnet. Thinks God's a secretion of the liver--all right once in a way, but there's no need to keep on about it. There's nothing you can't prove if your outlook is only sufficiently limited.

Learning and literature have a way of outlasting the civilization that made them.

Why? Oh, well - I thought you'd be rather an attractive person to marry. That's all. I mean, I sort of took a fancy to you. I can't tell you why. There's no rule about it, you know.

Detective stories keep alive a view of the world which ought to be true. Of course people read them for fun ... But underneath they feed a hunger for justice ... you offer to divert them, and you show them by stealth the orderly world in which we should all try to be living.

I say, I don’t think the human frame is very thoughtfully constructed for this sleuthhound business. If one could go on all fours, or had eyes in ones knees, it would be a lot more practical’… ‘What luck! Here’s a deep, damp ditch on the other side, which I shall now proceed to fall into.’ A slithering crash proclaimed that he had carried out his intention.

A human being must have occupation if he or she is not to become a nuisance to the world.

Heroics that don't come off are the very essence of burlesque.