A recognition of the general principle is implied in the change which has come over the methods of criticism. It has more and more adopted the historical attitude. Critics in an earlier day conceived their function to be judicial. They were administering a fixed code of laws applicable in all times and places. The true canons for dramatic or epic poetry, they held, had been laid down once for all by Aristotle or his commentators; and the duty of the critic was to consider whether the author had infringed or conformed to the established rules, and to pass sentence accordingly. I will not say that the modern critic has abandoned altogether that conception of his duty. He seems to me not infrequently to place himself on the judgment-seat with a touch of his old confidence, and to sentence poor authors with sufficient airs of infallibility. Sometimes, indeed, the reflection that he is representing not an invariable tradition but the last new aesthetic doctrine, seems even to give additional keenness to his opinions and to suggest no doubts of his infallibility. And yet there is a change in his position. He admits, or at any rate is logically bound to admit, the code which he administers requires modification in different times and places. The old critic spoke like the organ of an infallible Church, regarding all forms of art except his own as simply heretical. The modern critic speaks like the liberal theologian, who sees in heretical and heathen creeds an approximation to the truth, and admits that they may have a relative value, and even be the best fitted for the existing conditions. There are, undoubtedly, some principles of universal application; and the old critics often expounded them with admirable common-sense and force. But like general tenets of morality, they are apt to be commonplaces, whose specific application requires knowledge of concrete facts. When the critics assumed that the forms familiar to themselves were the only possible embodiments of those principles, and condemned all others as barbarous, they were led to pass judgments, such, for example, as Voltaire's view of Dante and Shakespeare, which strike us as strangely crude and unappreciative. The change in this, as in other departments of thought, means again that criticism, as Professor Courthope has said, must become thoroughly inductive. We must start from experience. We must begin by asking impartially what pleased men, and then inquire why it pleased them. We must not decide dogmatically that it ought to have pleased or displeased on the simple ground that it is or is not congenial to ourselves. As historical methods extend, the same change takes place in regard to political or economical or religious, as well as in regard to literary investigations. We can then become catholic enough to appreciate varying forms; and recognise that each has its own rules, right under certain conditions and appropriate within the given sphere.