In peace and prosperity states and individuals have better sentiments, because they do not find themselves suddenly confronted with imperious necessities; but war takes away the easy supply of daily wants and so proves a rough master that brings most men's characters to a level with their fortunes
ThucydidesFor the love of gain would reconcile the weaker to the dominion of the stronger, and the possession of capital enabled the more powerful to reduce the smaller cities to subjection.
Thucydides