This inductive method was grounded upon facts of his own experience and observation, as well as those of others, whom the intellectual metropolis had sent into Greece. He became the first and best absolute empiricist. His system acquired an encyclopedic character. He became the father of logic, natural history, empirical psychology and the science of rights. Aristotelian philosophy became the intellectual corner stone on which the Museum rested, and is to-day, through Jewish and Moorish influence, as we shall presently see, the corner stone of modern philosophy. The Jewish community of Alexandria was very large. When Alexander founded this city and gave it his name, he wished to secure for it permanent success, and so he brought them thither by the thousands. Ptolemy brought 100,000 more, after his siege of Jerusalem, and Philadelphus, his successor, redeemed from slavery 198,000 Jews, "paying their Egyptian owners a just money equivalent for each." Alexander's expectations were realized; the city of his name led the world in commerce and intellect. With an enthusiasm almost bordering on passion the Hebrews devoted themselves to philosophy, especially to Aristotelian philosophy. They ingrafted it upon their own theology and philosophic speculations, some going even so far as to believe that Aristotle must have been a Jew himself. Henceforth Aristotelian philosophy is Jewish philosophy. The occasional acceptance of the Neo-Platonic mysticism, theosophy and theurgy, was unable to obliterate it. During seven centuries learning flourished in the city of Alexandria, zealously fostered by native Egyptian, Greek and Jew. A new power arose--Christianity. At once it recognized in Aristotelian philosophy an inimical foe, and began its work of suppressing rational research and free thought. The rest we need not relate. We know what happens when Christianity institutes inquisitors of faith instead of inquirers of learning. We know what happens when Christianity uses power instead of argument. That day, when the beautiful and young Hypatia, perhaps, the most accomplished woman that has ever lived, the popular lecturer of Platonic and Aristotelian philosophy at the Museum, where her lecture room was crowded daily, with the wealth and intellect of Alexandria; that day, when this most noble of women was assaulted by Bishop Cyril's fanatical and blood-thirsty monks, when she was dragged by the followers of the "religion of love," from her chariot, stripped naked in the street, pulled into the church, where she was cut to pieces--where her flesh was scraped from the bones with a shell and the remnants cast into fire; that day marked the extinction of Alexandrian learning--it marked the extinction of Athenian learning. Science, so successful, died the death of strangulation, and the expounders of Aristotelian philosophy were silenced, and their literature condemned to the pyre.