In like manner we cannot refer the whole phenomena of the Renaissance to any one cause or circumstance, or limit them within the field of any one department of human knowledge. If we ask the students of art what they mean by the Renaissance, they will reply that it was the revolution effected in architecture, painting, and sculpture by the recovery of antique monuments. Students of literature, philosophy, and theology see in the Renaissance that discovery of manuscripts, that passion for antiquity, that progress in philology and criticism, which led to a correct knowledge of the classics, to a fresh taste in poetry, to new systems of thought, to more accurate analysis, and finally to the Lutheran schism and the emancipation of the conscience. Men of science will discourse about the discovery of the solar system by Copernicus and Galileo, the anatomy of Vesalius, and Harvey's theory of the circulation of the blood. The origination of a truly scientific method is the point which interests them most in the Renaissance. The political historian, again, has his own answer to the question. The extinction of feudalism, the development of the great nationalities of Europe, the growth of monarchy, the limitation of the ecclesiastical authority, and the erection of the papacy into an Italian kingdom, and in the last place the gradual emergence of that sense of popular freedom which exploded in the Revolution: these are the aspects of the movement which engross his attention. Jurists will describe the dissolution of legal fictions based upon the False Decretals, the acquisition of a true text of the Roman code, and the attempt to introduce a rational method into the theory of modern iurisprudence, as well as to commence the study of international law. Men whose attention has been turned to the history of discoveries and inventions will relate the exploration of America and the East, or will point to the benefits conferred upon the world by the arts of printing and engraving, by the compass and the telescope, by paper and by gunpowder; and will insist that at the moment of the Renaissance all the instruments of mechanical utility started into existence, to aid the dissolution of what was rotten and must perish, to strengthen and perpetuate the new and useful and life-giving.