No country that permits firearms to be widely and randomly distributed among its population - especially firearms that are capable of wounding and killing human beings - can expect to escape violence, and a great deal of violence.

I am interested in what happens to people who find the whole of life so rewarding that they are able to move through it with the same kind of delight in which a child moves through a game.

Many people are shrinking from the future and from participation in the movement toward a new, expanded reality. And, like homesick travelers abroad, they are focusing their anxieties on home. The reasons are not far to seek. We are at a turning point in human history. . . . We could turn our attention to the problems that going to the Moon certainly will not solve ... But I think this would be fatal to our future. . . . A society that no longer moves forward does not merely stagnate; it begins to die.

If one cannot state a matter clearly enough so that even an intelligent twelve-year-old can understand it, one should remain within the cloistered walls of the university and laboratory until one gets a better grasp of one's subject matter.

All of us who grew up before World War II are immigrants in time, immigrants from an earlier world, living in an age essentially different from anything we knew before.

Earth Day is the first holy day which transcends all national borders, yet preserves all geographical integrities, spans mountains and oceans and time belts, and yet brings people all over the world into one resonating accord, is devoted to the preservation of the harmony in nature and yet draws upon the triumphs of technology, the measurement of time, and instantaneous communication through space.

Those social behaviors which automatically preclude the building of a democratic world must go - every social limitation of human beings in terms of heredity, whether it be of race, or sex, or class. Every social institution which teaches human beings to cringe to those above and step on those below must be replaced by institutions which teach people to look each other straight in the face.