Am dining at Goldini's Restaurant, Gloucester Road, Kensington. Please come at once and join me there. Bring with you a jemmy, a dark lantern, a chisel, and a revolver. S. H." It was a nice equipment for a respectable citizen to carry through the dim, fog-draped streets.

The lowest and vilest alleys of London do not present a more dreadful record of sin than does the smiling and beautiful countryside.

There is danger for him who taketh the tiger cub, and danger also for whoso snatches a delusion from a woman.

Sherlock Holmes took his bottle from the corner of the mantel-piece, and his hypodermic syringe from its neat morocco case. With his long, white, nervous fingers he adjusted the delicate needle, and rolled back his left shirt-cuff. For some little time his eyes rested thoughtfully upon the sinewy forearm and wrist, all dotted and scarred with innumerable puncture-marks. Finally, he thrust the sharp point home, pressed down the tiny piston, and sank back into the velvet-lined armchair with a long sigh of satisfaction.

To let the brain work without sufficient material is like racing an engine. It racks itself to pieces.

So complex is the human spirit that it can itself scarce discern the deep springs which impel it to action.

The world is big enough for us. No ghosts need apply.