When you have eliminated all which is impossible, then whatever remains, however improbable, must be the truth. - Arthur Conan Doyle

"From a drop of water," said the writer, "a logician could infer the possibility of an Atlantic or a Niagara without having seen or heard of one or the other. So all life is a great chain, the nature of which is known whenever we are shown a single link of it."

I am lost without my Boswell.

[Sherlock Holmes on Dr. Watson.]

So unworldly was he — or so capricious — that he frequently refused his help to the powerful and wealthy where the problem made no appeal to his sympathies, while he would devote weeks of most intense application to the affairs of some humble client whose case presented those strange and dramatic qualities which appealed to his imagination and challenged his ingenuity.