In a world that operates largely at random, coincidences are to be expected, but any one of them must always be mistrusted.

What the tongue has promised, the body must submit to.

Dignities are like faces; no two are the same.

We are all vainer of our luck than of our merits.

[A] pessimist gets nothing but pleasant surprises, an optimist nothing but unpleasant.

As a professional writer of detective stories, I string along with the ballplayers. I love a ball game.

Every Sherlock Holmes story has at least one marvelous scene.