the unknown quantity being the temperament of the novelist, and the unknown quantity always modifies the effect of the evidence, and sometimes transforms it entirely.
The historian deals with actions, and with the characters of men only so far as he can deduce them from their actions. He is quite as much concerned with character as the novelist, but he can only know of its existence when it shows on the surface. If Queen Victoria had not said, “We are not amused,” her neighbours at table would not have known she was not amused, and her ennui could never have been announced to the public. She might have frowned, so that they would have deduced her state from that—looks and gestures are also historical evidence. But if she remained impassive—what would anyone know? The hidden life is, by definition, hidden. The hidden life that appears in external signs is hidden no longer, has entered the realm of action. And it is the function of the novelist to reveal the hidden life at its source: to tell us more about Queen Victoria than could be known, and thus to produce a character who is not the Queen Victoria of history.