It is the quietest and meekest people who are often capable of the most sudden and unexpected violences for the reason that when their control does snap, it goes entirely. (Hercule Poirot)

You should employ your little grey cells.

Sometimes I feel sure he is as mad as a hatter and then, just as he is at his maddest, I find there is a method in his madness.

You're shocked, Mr. Burton, at hearing what our gossiping little town thinks. I can tell you this - they always think the worst!

Youth is a failing only too easily outgrown.

I've always noticed that if you speak the truth in a rather silly way nobody believes you.

... the belief in a superstratum of human beings ... is the most evil of all beliefs. For when you say, 'I am not as other men' -- you have lost the two most valuable qualities we have ever tried to attain: -- humility and brotherhood.