Such a reform was naturally successful in reviving the national consciousness of the Ukrainians but it could not check the tendency of many of the more progressive and prominent families to send their children to the more fashionable Polish schools and thus the leakage of part of the educated class continued with little abatement. Its success would have been far greater, had the Patriarch of Constantinople been able to send a considerable number of scholars to assist in the organization of the new Greek-Slavonic schools, but unfortunately there was not the available personnel. A few outstanding men appeared for a short time. Thus Cyril Loukaris, who was later to be the celebrated Patriarch of Constantinople, taught at Ostrih and Wilno for a few years and he was perhaps the most prominent of the teachers to arrive. Yet even his short stay shows the desperate straits to which Constantinople was reduced at the time, when it seemed as if Greek learning itself might vanish as had the old splendor of Kievan culture. It is only fair, however, to say that the Polish schools were themselves none too efficient. The ideas of Protestantism had spread widely throughout Poland during this period and at one time a considerable proportion of the great magnates were at least sympathetic to it. The movement was checked by the work of the Order of the Jesuits and especially by its greatest member, Peter Skarga, probably the keenest mind of the day in Poland. He worked vigorously as a propagandist for the unity of the Churches and also as a founder and administrator of the various schools. The curriculum in these, while broader than the average Greek schools, was still not satisfactory from the European standpoint of the day. They were heavily laden with a late form of scholasticism and this in turn exerted a certain influence upon the Orthodox schools which had to prepare their students to live in the Polish atmosphere. The first of the great Ukrainian schools was that of Ostrih. Here Prince Konstantin Ostrozky, one of the richest nobles who still adhered to the Orthodox faith, set up a school. He invited Greeks to serve on its staff. He bought a printing press. Through his friendship with Prince Andrey Kurbsky, who fled from Moscow, he was fully acquainted with the work that had been done at Novgorod a half century earlier by Archbishop Gennady at the time of the heresy of the Judaizers. Prince Ostrozky’s powerful position enabled him to secure a copy of the Bible prepared by Gennady, parts of which had been translated from the Latin Vulgate. This Bible was again revised at Ostrih and was published in 1580 as the Ostrih Bible, the first Bible published in any East Slavonic land. The school flourished for about twenty years until the death of Konstantin. His sons accepted the Roman Catholic faith and very soon lost all interest in the work that their father had undertaken, with bad results to the school.