Dogs don't make mistakes.

Draw your chair up, and hand me my violin, for the only problem which we have still to solve is how to while away these bleak autumnal evenings.

To a great mind, nothing is little,' remarked Holmes, sententiously.

Several incidents in my life have convinced me of spiritual interposition - of the promptings of some beneficent force outside ourselves, which tries to help us where it can.

The good Watson had at that time deserted me for a wife, the only selfish action I can recall in our association. I was alone.

Healthy scepticism is the basis of all accurate observation.

They say that genius is an infinite capacity for taking pains," he remarked with a smile. "It's a very bad definition, but it does apply to detective work.