"On my world we’re old, incredibly old, and we’ve learned a lot from a past which is long and lurid. We’ve had empires by the dozens, though none as great as yours. They all went the same way—down the sinkhole. They all vanished for the same fundamental and inevitable reasons. Empires come and empires go, but little men go on forever."
January 1, 1970
https://en.wikiquote.org/wiki/Eric_Frank_Russell