This, however, is in one sense a digression, for there is no criticism of contemporary work in this volume. I think, however, as I have just endeavoured to point out, that criticism of contemporary work and criticism of classics should proceed on the same lines, and I think that both require the same qualities and the same outfit. Nor am I certain that if narrow inquiry were made, some of the best criticism in all times and in all languages would not be found in the merest casual reviewing. That in all cases the critic must start from a wide comparative study of different languages and literatures, is the first position to be laid down. In the next place he must, I think, constantly refer back his sensations of agreement and disagreement, of liking and disliking, in the same comparative fashion. "Why do I like the _Agamemnon_ and dislike Mr. Dash's five-act tragedy?" is a question to be constantly put, and to be answered only by a pretty close personal inquiry as to what "I" really do like in the _Agamemnon_ and do dislike in Mr. Dash. And in answering it, it will hardly be possible to consider too large a number of instances of all degrees of merit, from Aeschylus himself to Mr. Dash himself, of all languages, of all times. Let Englishmen be compared with Englishmen of other times to bring out this set of differences, with foreigners of modern times to bring out that, with Greeks and Romans to bring out the other. Let poets of old days be compared with poets of new, classics with romantics, rhymed with unrhymed. Let the straitest doctrinaire criticism of men of talent like Boileau and simpletons like Rymer be compared with the fullest appreciations of Coleridge and Hazlitt, of Sainte-Beuve and Mr. Arnold. "Compare, always compare" is the first axiom of criticism.[1] The second, I think, is "Always make sure, as far as you possibly can, that what you like and dislike is the literary and not the extra-literary character of the matter under examination." Make sure, that is to say, that admiration for the author is not due to his having taken care that the Whig dogs or the Tory dogs shall not have the best of it, to his having written as a gentleman for gentlemen, or as an uneasy anti-aristocrat for uneasy anti-aristocrats, as a believer (fervent or acquiescent) in the supernatural, or as a person who lays it down that miracles do not happen, as an Englishman or a Frenchman, a classic or a romantic. Very difficult indeed is the chase and discovery of these enemies: for extra-literary prejudices are as cunning as winter hares or leaf-insects, in disguising themselves by simulating literary forms.