Crime is common. Logic is rare. Therefore it is upon the logic rather than upon the crime that you should dwell.

I have already explained to you that what is out of the common is usually a guide rather than a hindrance.

You will, I am sure, agree with me that... if page 534 only finds us in the second chapter, the length of the first one must have been really intolerable.

There are heroisms all round us waiting to be done.

So it was, my dear Watson, that at two o'clock today I found myself in my old armchair in my own old room, and only wishing that I could have seen my old friend Watson in the other chair which he has so often adorned. - Sherlock Holmes.

The grand thing is to be able to reason backwards.

One forms provisional theories and waits for time or fuller knowledge to explode them. A bad habit, Mr. Ferguson, but human nature is weak. Sherlock Holmes speaking with Dr. Watson.