In Rome, it was enough that the office, munificence, "auctoritas" and "gens" of Augustus were identified with every possible legal, religious and social institution of the city. Should "foreigners" or private citizens wish to honour him as something more, that was their prerogative, within moderation; his acknowledgment of their loyalty demonstrated his own moral responsibility and generosity; "his" Imperial revenue funded temples, amphitheatres, theatres, baths, festivals and government. This unitary principle laid the foundations for what is now known as "Imperial cult", which would be expressed in many different forms and emphases throughout the multicultural Empire.