The sad fact is that international politics has always been a ruthless and dangerous business, and it is likely to remain that way.
John MearsheimerGreat powers must be forever vigilant and never subordinate survival to any other goal, including prosperity.
John MearsheimerThe Soviet Union and its empire disappeared in large part because its smokestack economy could no longer keep up with the technological progress of the world's major economic powers.
John Mearsheimer