 Were a subject \(M\) who has ascertained thoroughgoing positive correlations (\(S\) where \(H\)) and negative correlations (where no \(S\), no \(H\)), to doubt that an effect might arise without a cause, then—to take up the example of smoke and fire—why should \(M\), as \(M\) does in a rulewise manner, resort to fire for smoke, to food to allay hunger, and to speech to communicate to another person?