The average intelligent Roman who lived under the Empire had taken very little interest in the gods of his fathers. A few times a year he went to the temple, but merely as a matter of custom. He looked on patiently when the people celebrated a religious festival with a solemn procession. But he regarded the worship of Jupiter and Minerva and Neptune as something rather childish, a survival from the crude days of the early republic and not a fit subject of study for a man who had mastered the works of the Stoics and the Epicureans and the other great philosophers of Athens.

This attitude made the Roman a very tolerant man. The government insisted that all people, Romans, foreigners, Greeks, Babylonians, Jews, should pay a certain outward respect to the image of the Emperor which was supposed to stand in every temple, just as a picture of the President of the United States is apt to hang in an American Post Office. But this was a formality without any deeper meaning. Generally speaking everybody could honour, revere and adore whatever gods he pleased, and as a result, Rome was filled with all sorts of queer little temples and synagogues, dedicated to the worship of Egyptian and African and Asiatic divinities.