In every age since the dispersion began, the Jews have appeared to their neighbors as a curious anomaly. Their abstract idea of God, their peculiar religious observances, their refusal to intermarry with their neighbors, their serious habits of life--all have served to mark them out and attract the wonder of the philosophical, the vituperation of the vulgar, and the dislike of the ignorant. Their enemies in every epoch have repeated with slight variation the charge which Haman brought in his petition to King Ahasuerus, "There is a people scattered abroad and dispersed among the peoples in all the provinces of thy kingdom; and their laws are diverse from those of every people, neither keep they the king's laws" (Esther 3:8). In the cosmopolitan society that arose in the Hellenistic kingdoms, it was their especial offense that they retained a national cohesion, and refused to indulge in the free trade in religious ideas and social habits adopted by civilized peoples. The popular feeling was fanned by a party that had a more particular grievance against them. Though certain philosophical sects, notably the schools of Pythagoras and Aristotle, were struck with admiration for the lofty spiritual ideas and the strict discipline of Judaism, another school, and that the most powerful of the time, was smitten with envy and hatred. The Stoics, who aspired to establish a religious philosophy for all mankind, and pursued a vigorous missionary propaganda, particularly in the East, saw in the Jews not only obstinate opponents but dangerous rivals, who carried on a competing mission with provoking success. The children of Israel were spread over the whole of the civilized world, and everywhere they vigorously propagated their teaching. Of all enmities, the enmity of contending creeds is the bitterest. The Stoics became the first professional Jew-haters, and set themselves at the head of those who resented Jewish particularism, either from jealousy or from that unreasoning dislike which is universally felt against minorities that live differently from the mass about them.