whose works could be safely placed into the hands of true Christians.
His works had reached Europe in a somewhat roundabout way. They had gone from Greece to Alexandria. They had then been translated from the Greek into the Arabic language by the Mohammedans who conquered Egypt in the seventh century. They had followed the Moslem armies into Spain and the philosophy of the great Stagirite (Aristotle was a native of Stagira in Macedonia) was taught in the Moorish universities of Cordova. The Arabic text was then translated into Latin by the Christian students who had crossed the Pyrenees to get a liberal education and this much travelled version of the famous books was at last taught at the different schools of north-western Europe. It was not very clear, but that made it all the more interesting.
With the help of the Bible and Aristotle, the most brilliant men of the Middle Ages now set to work to explain all things between Heaven and Earth in their relation to the expressed will of God. These brilliant men, the so-called Scholiasts or Schoolmen, were really very intelligent, but they had obtained their information exclusively from books, and never from actual observation. If they wanted to lecture on the sturgeon or on caterpillars, they read the Old and New Testaments and Aristotle, and told their students everything these good books had to say upon the subject of caterpillars and sturgeons. They did not go out to the nearest river to catch a sturgeon. They did not leave their libraries and repair to the backyard to catch a few caterpillars and look at these animals and study them in their native haunts. Even such famous scholars as Albertus Magnus and Thomas Aquinas did not inquire whether the sturgeons in the land of Palestine and the caterpillars of Macedonia might not have been different from the sturgeons and the caterpillars of western Europe.
When occasionally an exceptionally curious person like Roger Bacon appeared in the council of the learned and began to experiment with magnifying glasses and funny little telescopes and actually dragged the sturgeon and the caterpillar
