We now turn to the southern attack upon the papal system. This was also an educational attack. Already we have seen the Arab schools in Spain. Before the eleventh century Christian youth attended these schools, taking across the Pyrenees the science of the Moors. The papacy quailed before this attack, and in order to lessen its force, the sciences of the Arabs were adopted in the papal universities. This, as we have already seen, was done in medicine and mathematics. But again the form was retained without the life. France, because of her jealousy of the Jewish physicians, through the influence of the University of Paris, banished every Jew from her borders. A _scientific attack could not overthrow the papacy_. [Sidenote: Science and discovery of America] However, the Moors went quietly on in their scientific discoveries; and when the fall of Constantinople closed the eastern route to the Indian Ocean, and Genoa wanted a western route, Spain was prepared to offer sailors the necessary charts and maps, compasses, and other mariners’ instruments. Her astronomical studies, celestial maps, and measurements of the degrees on the earth’s surface encouraged voyages both to the south and west, in direct contradiction to the theories of the patristic geographies. When Columbus asked aid at the Spanish court to fit vessels for the tour across the Atlantic, it is strange to note that the wife of the king of Spain, who took from the Moors the keys of Granada, and drove the Arab and his learning out of Europe, was the same woman who pledged her jewels to this man,—a man, who, dependent upon Arabic scientific investigation, discovered a world where those same truths might be planted, and mature untrammeled by papal tyranny. I say this was more than a coincidence. The hand of God was in it; and, as D’Aubigné says: “He prepares slowly and from afar that which he designs to accomplish. He has ages in which to work.” [Sidenote: Science and the Reformation] While scientific knowledge could not overthrow the papacy, it had its part to play along with the classics. When men were spiritually dead, and the Word of God was hidden, minds were freed from papal thraldom by the work of the scientist and the classical student. Bear in mind, however, that the classics helped only as they offered the Scriptures; and science helped only as it opened men’s minds to the reception of the truths of God’s Word. Mighty forces were at work: the earth itself must be moved, and the fulcrum whereon rested the lever by which it was to be turned in its orbit was the throne of God, and the _Word of the Eternal was the moving power_. Men, weak in themselves but resolute in purpose, were the instruments in the hand of God to accomplish a task which ages had waited for, and principalities and powers in heavenly places had longed to see. [Sidenote: Reformation and education]