If we compare the Êra of the crusades, the Latins of Europe with the Greeks and Arabians, their respective degrees of knowledge, industry, and art, our rude ancestors must be content with the third rank in the scale of nations. Their successive improvement and present superiority may be ascribed to a peculiar energy of character, to an active and imitative spirit, unknown to their more polished rivals, who at that time were in a stationary or retrograde state. With such a disposition, the Latins should have derived the most early and essential benefits from a series of events which opened to their eyes the prospect of the world, and introduced them to a long and frequent intercourse with the more cultivated regions of the East. The first and most obvious progress was in trade and manufactures, in the arts which are strongly prompted by the thirst of wealth, the calls of necessity, and the gratification of the sense or vanity. Among the crowd of unthinking fanatics, a captive or a pilgrim might sometimes observe the superior refinements of Cairo and Constantinople: the first importer of windmills [65] was the benefactor of nations; and if such blessings are enjoyed without any grateful remembrance, history has condescended to notice the more apparent luxuries of silk and sugar, which were transported into Italy from Greece and Egypt. But the intellectual wants of the Latins were more slowly felt and supplied; the ardor of studious curiosity was awakened in Europe by different causes and more recent events; and, in the age of the crusades, they viewed with careless indifference the literature of the Greeks and Arabians. Some rudiments of mathematical and medicinal knowledge might be imparted in practice and in figures; necessity might produce some interpreters for the grosser business of merchants and soldiers; but the commerce of the Orientals had not diffused the study and knowledge of their languages in the schools of Europe. [66] If a similar principle of religion repulsed the idiom of the Koran, it should have excited their patience and curiosity to understand the original text of the gospel; and the same grammar would have unfolded the sense of Plato and the beauties of Homer. Yet in a reign of sixty years, the Latins of Constantinople disdained the speech and learning of their subjects; and the manuscripts were the only treasures which the natives might enjoy without rapine or envy. Aristotle was indeed the oracle of the Western universities, but it was a barbarous Aristotle; and, instead of ascending to the fountain head, his Latin votaries humbly accepted a corrupt and remote version, from the Jews and Moors of Andalusia. The principle of the crusades was a savage fanaticism; and the most important effects were analogous to the cause. Each pilgrim was ambitious to return with his sacred spoils, the relics of Greece and Palestine; [67] and each relic was preceded and followed by a train of miracles and visions.