Mr. Robinson will, it is hoped, be successful in his enterprise. EXTRACT FROM LACON. Nothing is so difficult as the apparent ease of a clear and flowing style: those graces which from their presumed facility encourage all to attempt an imitation of them, are usually the most inimitable. EDITORIAL DEPARTMENT. The two preceding numbers of the "Messenger" having been, as far as we can learn, favorably received by its patrons, we have endeavored in this to keep pace with expectation, by presenting a rich variety of original matter, and a few interesting selections. Among the most important duties of those who have any concern in the management of such a work--it is not the least to be watchful of an enlightened public opinion--to profit by the suggestions of others, and even to receive with patience well-intended rebuke. It is precisely in this latter spirit that we have noticed in the letters of one or two correspondents, as well as in the public prints, some animadversions upon the editorial remarks in the last number. We have been censured, and perhaps justly, for bestowing too much praise on the contributions of our friends. However great the error, it was at least honestly, if not prudently committed. It was believed that a little commendation was not only justly due, but might stir up generous minds to increase their efforts in behalf of an infant and laudable enterprise. We should always prefer erring on the side of indiscriminate praise, rather than undeserved censure. The true path, indeed, is to avoid both extremes,--but it is much easier to prescribe good counsel than always to follow it. We have been admonished too by a very sensible and judicious correspondent, in whose judgment we entertain great confidence, that we have imposed inconvenient and impolitic restrictions upon the writers for the "Messenger," by limiting the subject matter of their contributions. We are told that we have circumscribed too much the field of their labors, by objecting to such materials as are drawn from foreign character and manners,--and we are gently reminded of an apparent inconsistency, between our professed attachment to domestic subjects, and the admission into our columns of copious extracts from an English novel. We are moreover informed from the same intelligent source, that our denunciation of all such fictions as are founded upon fairy mythology, is not very reasonable,--inasmuch as these may imbody the conceptions of imagination and genius--and may serve to illustrate and display Virginia talent and literature.