“In the imagination of those who are sensitive to the realities of our era, the earth has become a space ship, and this, perhaps, is the most important single fact of our day. For millennia, the earth in men's minds was flat and illimitable. Today, as a result of exploration, speed, and the explosion of scientific knowledge, earth has become a tiny sphere, closed, limited, crowded, and hurtling through space to unknown destinations. This change in man's image of his home affects his behaviour in many ways, and is likely to affect it much more in the future.”

22 min 35 sec
Cosmos: A Personal Voyage (1990 Update), Who Speaks for Earth? [Episode 13]
Context: Our global civilisation is clearly on the edge of failure and the most important task it faces, preserving the lives and well-being of its citizens and the future habitability of the planet. But if we're willing to live with the growing likelihood of nuclear war shouldn't we also been willing to explore vigorously every possible means to prevent nuclear war. Shouldn't we consider in every nation major changes in the traditional ways of doing things, a fundamental restructuring of economic political social and religious institutions. We've reached a point where there can be no more special interests or special cases, nuclear arms threaten every person on the Earth. Fundamental changes in society are sometimes labelled impractical or contrary to human nature, as if nuclear war were practical or as if there's only one human nature. But fundamental changes can clearly be made, we're surrounded by them. In the last two centuries abject slavery which was with us for thousands of years has almost entirely been eliminated in a stirring worldwide revolution. Women, systematically mistreated for millennia are gradually gaining the political and economic power traditionally denied them and some wars of aggression have recently been stopped or curtailed because of a revulsion felt by the people in the aggressor nations. The old appeals to racial, sexual, and religious chauvinism and to rabid nationalist fervor are beginning not to work. A new consciousness is developing which sees the earth as a single organism and recognizes that an organism at war with itself is doomed. We are one planet. One of the great revelations of the age of space exploration is the image of the earth finite and lonely, somehow vulnerable, bearing the entire human species through the oceans of space and time.

Vanna Bonta Talks Sex in Space (Interview - Femail magazine)

Source: The Status Civilization (1960), Chapter 8 (p. 41)

1963, President John F. Kennedy's last formal speech and public words

Introduction
An Enquiry into the Obligations of Christians (1792)
Context: As our blessed Lord has required us to pray that his kingdom may come, and his will be done on earth as it is in heaven, it becomes us not only to express our desires of that event by words, but to use every lawful method to spread the knowledge of his name. In order to this, it is necessary that we should become, in some measure acquainted with the religious state of the world; and as this is an object we should be prompted to pursue, not only by the gospel of our Redeemer, but even by the feelings of humanity, so an inclination to conscientious activity therein would form one of the strongest proofs that we are the subjects of grace, and partakers of that spirit of universal benevolence and genuine philanthropy, which appear so eminent in the character of God himself.

Vanna Bonta Talks Sex in Space (Interview - Femail magazine)

As quoted in "Science Attests the Accuracy of the Bible" in The Watchtower (1 October 1980)

Address to Congress (1945)
Context: Today, America has become one of the most powerful forces for good on earth. We must keep it so. We have achieved a world leadership which does not depend solely upon our military and naval might.
We have learned to fight with other nations in common defense of our freedom. We must now learn to live with other nations for our mutual good. We must learn to trade more with other nations so that there may be — for our mutual advantage — increased production, increased employment and better standards of living throughout the world.
May we Americans all live up to our glorious heritage.
In that way, America may well lead the world to peace and prosperity.

1960s, Operating Manual for Spaceship Earth (1963)