No society that feeds its children on tales of successful violence can expect them not to believe that violence in the end is rewarded.

We are at a point in history where a proper attention to space, and especially near space, may be absolutely crucial in bringing the world together.

Interest and proficiency in almost any one activity-swimming, boating, fishing, skiing, skating-breed interest in many more. Once someone discovers the delight of mastering one skill, however slightly, he is likely to try out not just one more, but a whole ensemble.

We know of no culture that has said, articulately, that there is no difference between men and women except in the way they contribute to the creation of the next generation.

Children not only have to learn what their parents learned in school, but also have to learn how to learn. This has to be recognized as a new problem which is only partly solved.

No society has ever yet been able to handle the temptations of technology to mastery, to waste, to exuberance, to exploration and exploitation... We have to learn to cherish this earth and cherish it as something that's fragile, that's only one, it's all we have... We have to use our scientific knowledge to correct the dangers that have come from science and technology.

I had my father's mind, but he had his mother's mind. Fortunately, his mother lived with us and so I early realized that intellectual abilities of the kind I shared with my father and grandmother were not sex-linked.