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Civilization never stands still; if in one country it is falling back, in another it is changing, evolving, becoming more complicated, bringing fresh experience to body and mind, breeding new desires, and exploiting Nature's cupboard for their satisfaction.

History shows us that other highly developed forms of civilization have collapsed. Who knows whether the same fate does not await our own?

The more rapidly a civilization progresses, the sooner it dies for another to rise in its place.

It will take a long time, and certainly the West will remain the dominant civilization well into the next century, but the decline is occurring.

Civilization is the making of civil persons.

We're addicted to this concept of civilization - we can't imagine living outside of it because we've had it for 10,000 years, all of what we call history. But according to archaeologists, humanity has been on this planet for millions of years in indigenous form.

No civilization on the brink of collapse has ever changed fast enough to avert collapse.

Without adventure civilization is in full decay.

The future is much like the present, only longer.

Our civilization is now in the transition stage between the age of warring empires and a new age of world unity and peace.