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!

[Sherlock Holmes:] The temptation to form premature theories upon insufficient data is the bane of our profession.

Data!data!data!" he cried impatiently. "I can't make bricks without clay.

There is no satisfaction in vengeance unless the offender has time to realize who it is that strikes him, and why retribution has come upon him.

The most difficult crime to track is the one which is purposeless.

He had never seen a woman doctor before, and his whole conservative soul rose up in revolt at the idea. He could not recall any biblical injunction that the man should remain ever the doctor and the woman the nurse, and yet he felt as if a blasphemy had been committed.

A man with so large a brain must have something in it.