The devil’s agents may be of flesh and blood, may they not?

There is a mystery about this which stimulates the imagination; where there is no imagination there is no horror.

You have a grand gift for silence, Watson. It makes you quite invaluable as a companion.

One dumb-bell, Watson! Consider an athlete with one dumb-bell. Picture to yourself the unilateral development - the imminent danger of a spinal curvature. Shocking, Watson, shocking!

If my future were black, it was better surely to face it like a man than to attempt to brighten it by mere will-o’-the-wisps of the imagination.

There is nothing like first-hand evidence.

I had hardly expected so dolichocephalic a skull or such well-marked supra-orbital development. Would you have any objection to my running my finger along your parietal fissure? A cast of your skull, sir, until the original is available, would be an ornament to any anthropological museum. It is not my intention to be fulsome, but I confess that I covet your skull.