I fear that if the matter is beyond humanity, it is certainly beyond me.

It is an old maxim of mine that when you have excluded the impossible, whatever remains, however improbable, must be the truth.

I cannot live without brainwork. What else is there to live for

We can't command our love, but we can our actions.

London, that great cesspool into which all the loungers and idlers of the Empire are irresistibly drained.

To the man who loves art for its own sake, it is frequently in its least important and lowliest manifestations that the keenest pleasure is to be derived.

Once or twice in my career I feel that I have done more real harm by my discovery of the criminal than ever he had done by his crime. I have learned caution now, and I had rather play tricks with the law of England than with my own conscience.