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  5. In the long run, the aggressive civilizations destroy...

In the long run, the aggressive civilizations destroy themselves, almost always. It's their nature. They can't help it.

Carl Sagan
Running, Civilization, Long
"Contact". Book by Carl Sagan. Chapter 20, p. 359, 1985.
In the long run, the aggressive civilizations destroy themselves, almost always. It's their nature. They can't help it.