Warfare ... is just an invention, older and more widespread than the jury system, but none the less an invention.

If the future is to remain open and free, we need people who can tolerate the unknown, who will not need the support of completely worked out systems or traditional blueprints from the past.

We must bear in mind the possibility that the greater opportunities open in the twentieth century to women may be quite withdrawn, and that we may return to stricter regimentation of women.

Don't depend on governments or corporations to fix problems. Social revolutions are led by passionate individuals and that's what makes the difference.

I suddenly realized that through no act of my own I had become biologically related to a new human being.

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.

EARTH DAY reminds the people of the world of the need for continuing care which is vital to Earth's safety.