The insecurity of contemporary criticism is no reason, however, why it should not be seriously and sincerely attempted. On the contrary, the critic who has been accustomed to follow paths where the laws and criteria of literature are paramount, may be glad to slip away sometimes to a freer country, where the art he tries to practise is more instinctive, more emotional, and more controversial. In the schools of antiquity, when the set discourse was over, the lecturer mingled with his audience under the portico of the Museum, and then, I suppose, it was not any longer of the ancients that they talked, but of the poet of last night, and of the rhetorician of to-morrow. The critic may enjoy the sense of having abandoned the lecturing desk or the tribune, and of mingling in easy conversation with men who are not bound to preserve any decorum in listening to his opinions. In the criticism of the floating literature of the day an opportunity is offered for sensibility, for the personal note, even for a certain indulgence in levity or irony. The questions of our own age are not yet settled by tradition, nor hedged about with logical deductions; they are still open to discussion; they are still Questions at Issue. Such are all the aspects of the literary life which I endeavour to discuss in this volume of essays. There can, nevertheless, be no reason why, although the dress and attitude be different, the critic should not be as true to his radical conceptions of right and wrong in literature, when he discusses the shifts and movements about him, as when he "bears in memory what has tamed great nations." The attention of a literary man of character may be diverted to a hundred dissimilar branches of his subject, but in dealing with them all he should be the servant of the same ideas, the defender of the same principles, the protector of the same interests. The battle rages hither and thither, but none of the issues of it are immaterial to him, and his attitude towards what he regards as the enemies of his cause should never radically alter. His functions should rather become more active and more militant when he feels that his temporary position deprives him of accidental authority; and even when he admits that the questions he discusses are matters of open controversy, he should, in bringing his ideas to bear upon them, be peculiarly careful to obey the orders of fundamental principles. All this is quite compatible, I hope, with the sauntering step, the conversational tone, the absence of all pedagogic assertion, which seem to me indispensable in the treatment of contemporary themes.