…politics, whether within or among nations, would always be a struggle for power. It could never in itself be a moral act. It followed that government was “a sad necessity and not a glorious one.” Politics might, from time to time, draft moral men into government, but even they would never be “wholly unsullied,” for although an individual might remain uncorrupted by power, he would have to surround himself with others who were.

— John Lewis Gaddis, George F. Kennan, An American Life, p. 492