Inclined to peace by his temper and situation, it was easy for [Augustus] to discover that Rome, in her present exalted situation, had much less to hope than to fear from the chance of arms; and that, in the prosecution of remote wars, the undertaking became every day more difficult, the event more doubtful, and the possession more precarious and less beneficial.

The History of the Decline and Fall of the Roman Empire - Volume the First (ed. 1776)