"Chance, the blind Madonna of the Pagan, rules this terrestrial bustle; and in Chance I place my sole reliance. Chance has brought us three together; when we next separate and go forth our several ways, Chance will continually drag before our careless eyes a thousand eloquent clues, not to this mystery only, but to the countless mysteries by which we live surrounded. Then comes the part of the man of the world, of the detective born and bred. This clue, which the whole town beholds without comprehension, swift as a cat, he leaps upon it, makes it his, follows it with craft and passion, and from one trifling circumstance divines a world."
Words spoken by Somerset to Challoner and Desborough while they sit in the Bohemian Cigar Divan in Rupert Street, Soho
in The Dynamiter by Robert Louis Stevenson & Fanny Van de Grift Stevenson (1885)