William Congreve,
The Double Dealer — Preface directed to Charles Montague
“ For if he supposes any one to be by when he talks to himself, it is monstrous and ridiculous to the last degree. Nay, not only in this case, but in any part of a play, if there is expressed any knowledge of an audience, it is insufferable. But otherwise, when a man in soliloquy reasons with himself, and pro’s and con’s, and weighs all his designs, we ought not to imagine that this man either talks to us or to himself; he is only thinking, and thinking such matter as were inexcusable folly in him to speak. ”
