While the individual man is an insoluble puzzle, in the aggregate he becomes a mathematical certainty. You can, for example, never foretell what any one man will be up to, but you can say with precision what an average number will be up to. Individuals vary, but percentages remain constant. So says the statistician.
Arthur Conan DoyleLondon, that great cesspool into which all the loungers and idlers of the Empire are irresistibly drained.
Arthur Conan Doyle