Eliminate all other factors, and the one which remains must be the truth.

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.

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.

Jealousy is a strange transformer of characters.

It is all in the way of professional experience.

Let me see. What are my other shortcomings?

I have seen too much not to know that the impression of a woman may be more valuable than the conclusion of an analytical reasoner.