The religious orders, probably represented by the above proportion of three thousand ecclesiastics to three hundred [secular] priests had also undergone a remarkable revolution. The rule of all the early Irish monasteries and convents was framed upon an original constitution, which St. Patrick had obtained in France from St. Martin of Tours, who in turn had copied after the monachism of Egypt and the East. It is called by ecclesiastical writers the Columban rule, and was more rigid in some particulars than the rule of St. Benedict, by which it was afterwards supplanted. Amongst other restrictions it prohibited the admission of all unprofessed persons within the precincts of the monastery—a law as regards females incorporated in the Benedictine constitution; and it strictly enjoined silence on the professed—a discipline revived by the brethren of La Trappe. The primary difference between the two orders lay perhaps in this, that the Benedictine made study and the cultivation of the intellect subordinate to manual labour and implicit obedience, while the Columban Order attached more importance to the acquisition of knowledge and missionary enterprise. Not that this was their invariable, but only their peculiar characteristic: a deep-seated love of seclusion and meditation often, intermingled with this fearless and experimental zeal. It was not to be expected in a century like the ninth, especially when the Benedictine Order was overspreading the West, that its milder spirit should not act upon the spirit of the Columban rule. It was, in effect, more social, and less scientific, more a wisdom to be acted than to be taught. Armed with the syllogism, the Columbites issued out of their remote island, carrying their strongly marked personality into every controversy and every correspondence. In Germany and Gaul, their system blazed up in Virgilius, in Erigena, and Macarius, and then disappeared in the calmer, slower, but safer march of the Benedictine discipline. By a reform of the same ancient order, its last hold on native soil was loosened when, under the auspices of St. Malachy, the Cistercian rule was introduced into Ireland the very year of his first visit to Clairvaux (A.D. 1139). St. Mary's Abbey, Dublin, was the first to adopt that rule, and the great monastery of Mellifont, placed under the charge of the brother of the Primate, sprung up in Meath, three years later. The Abbeys of Bective, Boyle, Baltinglass, and Monasternenagh, date from the year of Malachy's second journey to Rome, and death at Clairvaux—A.D. 1148. Before the end of the century, the rule was established at Fermoy, Holycross, and Odorney; at Athlone and Knockmoy; at Newry and Assaroe, and in almost every tribe-land of Meath and Leinster. It is usually but erroneously supposed that the Cistercian rule came in with the Normans; for although many houses owed their foundation to that race, the order itself had been naturalized in