“But even now, after the greatest victory known to history we cannot for one minute forget the basic fact that our country remains the one socialist state in the world. You will speak frankly about this to the collective farmers…Only the most concrete, most immediate danger, which threatened us from Hitlerite Germany, has disappeared.”

2000s, 2002, State of the Union address (January 2002)

What is to be Done? (1902)

55 min 20 sec
Cosmos: A Personal Voyage (1990 Update), Who Speaks for Earth? [Episode 13]
Context: Since this series' maiden voyage, the impossible has come to pass: Mighty walls that maintained insuperable ideological differences have come tumbling down; deadly enemies have embraced and begun to work together. The imperative to cherish the Earth and protect the global environment that sustains all of us has become widely accepted, and we've begun, finally, the process of reducing the obscene number of weapons of mass destruction. Perhaps we have, after all, decided to choose life. But we still have light years to go to ensure that choice. Even after the summits and the ceremonies and the treaties, there are still some 50,000 nuclear weapons in the world — and it would require the detonation of only a tiny fraction of them to produce a nuclear winter, the predicted global climatic catastrophe that would result from the smoke and the dust lifted into the atmosphere by burning cities and petroleum facilities.
The world scientific community has begun to sound the alarm about the grave dangers posed by depleting the protective ozone shield and by greenhouse warming, and again we're taking some mitigating steps, but again those steps are too small and too slow. The discovery that such a thing as nuclear winter was really possible evolved out of the studies of Martian dust storms. The surface of Mars, fried by ultraviolet light, is also a reminder of why it's important to keep our ozone layer intact. The runaway greenhouse effect on Venus is a valuable reminder that we must take the increasing greenhouse effect on Earth seriously.
Important lessons about our environment have come from spacecraft missions to the planets. By exploring other worlds we safeguard this one. By itself, I think this fact more than justifies the money our species has spent in sending ships to other worlds. It is our fate to live during one of the most perilous and, at the same time, one of the most hopeful chapters in human history.
Our science and our technology have posed us a profound question. Will we learn to use these tools with wisdom and foresight before it's too late? Will we see our species safely through this difficult passage so that our children and grandchildren will continue the great journey of discovery still deeper into the mysteries of the Cosmos? That same rocket and nuclear and computer technology that sends our ships past the farthest known planet can also be used to destroy our global civilization. Exactly the same technology can be used for good and for evil. It is as if there were a God who said to us, “I set before you two ways: You can use your technology to destroy yourselves or to carry you to the planets and the stars. It's up to you.”

2005 GDC Keynote https://www.youtube.com/watch?v=AnrEosZKzp4&t=8m6s

But it was inevitable that Auden should arrive at this point. His anxiety is fundamental; and the one thing that anxiety cannot do is to accept itself, to do nothing about itself — consequently it admires more than anything else in the world doing nothing, sitting still, waiting.

“Freud to Paul: The Stages of Auden’s Ideology”, p. 180
The Third Book of Criticism (1969)

As quoted in Mediterranean Fascism 1919-1945, edit., Charles F. Delzell, The MacMillian Press (1970) p. 23. Speech given on June 21, 1921 in Italy’s Chamber of Deputies.
1920s

Source: The Future As History (1960), Chapter IV, Part 9, The Grand Dynamic of History, p. 209
Context: In an age which no longer waits patiently through this life for the rewards of the next, it is a crushing spiritual blow to lose one's sense of participation in mankind's journey, and to see only a huge milling-around, a collective living-out of lives with no larger purpose than the days which each accumulates. When we estrange ourselves from history we do not enlarge, we diminish ourselves, even as individuals. We subtract from our lives one meaning which they do in fact possess, whether we recognize it or not. We cannot help living in history. We can only fail to be aware of it. If we are to meet, endure, and transcend the trials and defeats of the future — for trials and defeats there are certain to be — it can only be from a point of view which, seeing the future as part of the sweep of history, enables us to establish our place in that immense procession in which is incorporated whatever hope humankind may have.

2010s, Hard Truths: Law Enforcement (2015)