History tells us that unless we modify this story, it is guaranteed to end tragically. Empires never last. Everyone of them has failed terribly. They destroy many cultures as they race toward greater domination, and then they themselves fall. No country or combination of countries can thrive in the long term by exploiting others.

The whole track of history is marked with the ruin of empires which having been founded in injustice, or perpetuated by wrong, were ultimately destroyed.

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.

I made up my mind after reading the lessons of history never to dream of a vast world-empire. For what has become of all those so-called world-empires? Alexander, Napoleon and all such great captains bathed themselves in blood, and yet left behind them subjugated peoples, who, after those great men had died, rose in revolt and ruined the Empires they had created.

A great empire cannot bring freedom by its own decay to those corners in it where a subject people are prevented from discussing the fundamentals of life. The people feel like children turned adrift to fend for themselves when the imperial routine breaks down; and they wander to and fro, given up to instinctive fears and antagonisms and exaltation until reason dares to take control. I had come to Yugoslavia to see what history meant in flesh and blood. I learned now that it might follow, because an empire passed, that a world full of strong men and women and rich food and heady wine might nevertheless seem like a shadow-show: that a man of every excellence might sit by a fire warming his hands in the vain hope of casting out a chill that lived not in the flesh.

The history of empires is the history of human misery.

History teaches us that civilizations flourish, die and disappear. Sometimes they died swiftly, sometimes in a slow lingering death. And sometimes, as with Rome and others, echoes of that civilization find new life in later cultures. To lose the conscious memory of an entire civilization is especially tragic and dangerous, because each civilization, no matter how grand or flawed, is a laboratory of human ideas and ideals, of dreams and nightmares. We can learn from all of them.

Every civilization that has ever existed has ultimately collapsed... History is a tale of efforts that failed, of aspirations that weren’t realized.... So, as a historian, one has to live with a sense of the inevitability of tragedy.

History. The more of it you have the more you have to live it. After a little while there gets to be too much of it to memorize and maybe that's when empires start to decline.

We have to acknowledge that the empire is tottering towards its collapse... Empire is the expression of white supremacy beyond our borders... to go into the Middle East... Vietnam, Latin America, the Philippines... & steal natural resources... exploit cheap labor... White supremacy hurts white folks.... The police in Buffalo intentionally knocking down that older white man, who lay there bleeding from the head while the police walked over him... was such a profound metaphor for how racism hurts white people... What empires traditionally do at the end is they engage in what historians call "micro-militarism".... At the end stage, the elites need the tools that the empire perfected on people of color abroad... the drones and militarized police and heavy weapons such as armored personnel carriers being used.... against the country's own citizens.

(theatrically) Do you realize, Dr. Seldon, that you are speaking of an Empire that has stood for twelve thousand years, through all the vicissitudes of the generations, and which has behind it the good wishes and love of a quadrillion human beings? A. I am aware both of the present status and the past history of the Empire. Without disrespect, I must claim a far better knowledge of it than any in this room. Q. And you predict its ruin? A. It is a prediction which is made by mathematics. I pass no moral judgements. Personally, I regret the prospect. Even if the Empire were admitted to be a bad thing (an admission I do not make), the state of anarchy which would follow its fall would be worse. It is that state of anarchy which my project is pledged to fight. The fall of Empire, gentlemen, is a massive thing, however, and not easily fought. It is dictated by a rising bureaucracy, a receding initiative, a freezing of caste, a damming of curiosity — a hundred other factors. It has been going on, as I have said, for centuries, and it is too majestic and massive a movement to stop.

We have to acknowledge that the empire is tottering towards its collapse. So what is empire? Empire is the expression of white supremacy beyond our borders. The whole nature of empire is to go into the Middle East — previously into Vietnam, Latin America, the Philippines and elsewhere — and steal natural resources and exploit cheap labor in the name of white supremacy. And of course, we have an American society built on chattel slavery and genocide against indigenous peoples. What empires traditionally do at the end is they engage in what historians call "micro-militarism".

Imperialism has been defeated in many partial battles. But it remains a considerable force in the world, and we cannot expect its final defeat save through effort and sacrifice on the part of us all.

The humiliating retreat from Afghanistan is just the punctuation mark. What we’re witnessing is the end of the US empire, with all the alien rulers, corrupt judges, illegitimate government, incompetent generals, foreign profiteers, and hordes of invading migrants, moral degeneracy, and declining religious faith, morale, and national confidence that customarily accompanies such events. If history is any guide, this is not going to be turned around, so it is time to stop thinking in terms of “preserving” and “conserving” and “restoring” that which is destroyed, and start thinking in terms of building anew with the benefit of the lessons learned from the decline and fall of the United States of America.