If I were to be taken hostage, I would not plead for release nor would I want my government to be blackmailed. I think certain government officials, industrialists and celebrated persons should make it clear they are prepared to be sacrificed if taken hostage. If that were done, what gain would there be for terrorists in taking hostages?

It is not until science has become a discipline to which the research ability of any mind from any class in society can be attracted that it can become rigorously scientific.

Human beings do not carry civilization in their genes. All that we do carry in our genes are certain capacities- the capacity to learn to walk upright, to use our brains, to speak, to relate to our fellow men, to construct and use tools, to explore the universe, and to express that exploration in religion, in art, in science, in philosophy.

today's children are the first generation to grow up in a world that has the power to destroy itself.

Through a grandmother's voice and hands the end of life is known at the beginning.

We may say that many, if not all, of the personality traits which we have called masculine or feminine are as lightly linked to sex as are the clothing, the manners, and the form of headdress that a society at a given period assigns to either sex.

All social change comes from the passion of individuals.