With this view, some of the most eminent among the Jewish doctors, taught in the schools the oral law together with the signification thereof, and in this way they illustrated all the most abstruse and difficult passages by useful and instructive commentaries. These illustrations and glossaries increased from time to time, which formed the Talmud, such as it is at present in the possession of the Israelites. It abounds with aphorisms and ethics, which were introduced by the Rabbins and Doctors who composed the Talmud, in the course of their discussions. It was in this manner, that they supported the opinions advanced by them on the various subjects upon which they treated. These subjects were frequently illustrated by moral tales and allegories, such being the tutelar system prevalent among most of the oriental nations in those days. In the said Talmud the Rabbins taught also the various arts and sciences, such as known in those times, although it may be conceded that they may not have reached to such perfection as in the present enlightened age; nevertheless the principle was known by the Israelites of old, and practically applied by them as far as necessity demanded. It is well known that astronomy, geometry, architecture, physics, natural philosophy, as well as many of the other sciences, were in high cultivation both before and after the Babylonian captivity. The building of the tabernacle in the wilderness--the beautiful temple of Solomon,--the superb edifice erected by Herod the Great, may certainly be advanced as specimens of the science of architecture, in which must naturally be included that of geometry. It cannot be denied that the Jews were also famous in hydraulics, aqueducts, etc., military tactics and war implements, engineering, agriculture, etc.