We enter on a work whose practical usefulness no one, we suspect, will dispute, since it concerns perhaps the most memorable act of the reign of Pius IX.--the Syllabus. There has been a great deal of discussion about the Syllabus--much has been written on it in the way both of attack and defence--but it is remarkable that it has scarcely been studied at all. The remark was made by one of the editors of this review, Father Marquigny, in the General Congress of Catholic Committees at Paris; and, so true was it felt to be, that it provoked the approving laughter of the whole assembly. But to pass by those who busy themselves about this document without having read it, how many are there, even among Catholics, who, after having read it, have only the most vague and confused notions about it--how many who, if they were asked, “What does the Syllabus teach you; what does it make obligatory on you?” would not know what to answer! Thus is man constituted. He skims willingly over the surface of things; but he has no fancy for stopping awhile and digging underneath. If he is pleased with looking at a great many things, he does not equally concern himself to gain knowledge; because there is no true science without labor, and labor is troublesome. Yet nothing could be more desirable for him than to come by this luminous entrance from the knowledge to the possession of truth. Christian faith, when it is living and active, necessarily experiences the desire of it; for, according to the beautiful saying of S. Anselm, it is, by its very nature, a seeker of science--of knowing: _Fides quærens intellectum_. But, not to delay ourselves by these considerations, is it possible to exaggerate the importance of the study of the Syllabus in the critical circumstances in which we are placed? The uncertainty of the future; the impossibility of discovering a satisfactory course in the midst of the shadows which surround us; the need of knowing what to seize a firm hold of in the formidable problems whose obscurity agitates, in these days, the strongest minds; above all, the furious assaults of the enemies of the church, and the authority belonging to a solemn admonition coming to us from the chair of truth--all these things teach us plainly enough how culpable it must be for us to remain indifferent and to neglect the illumination offered to us. The teachings of the Vicar of Jesus Christ deserve to be meditated on at leisure. It is this which inspires us with a hope that our work will be favorably received. Truth, moreover, claims the services of all, even of the feeblest, and we must not desert her cause for fear our ability may not suffice for her defence.