(b) Slowly but steadily he began to take part in the economic life around him; not as a producer, however, but only as a middleman. His commercial cunning, acquired through thousands of years of negotiation as an intermediary, made him superior in this field to the Aryans, who were still quite ingenuous and indeed clumsy and whose honesty was unlimited; so that after a short while commerce seemed destined to become a Jewish monopoly. The Jew began by lending out money at usurious interest, which is a permanent trade of his. It was he who first introduced the payment of interest on borrowed money. The danger which this innovation involved was not at first recognized; indeed the innovation was welcomed, because it offered momentary advantages.