My present work concerns the problems connected with the theory of elementary particles, the theory of gravitation and cosmology and I shall be glad if I can manage to make some contribution to these important branches of science.

I regard the death penalty as a savage and immoral institution that undermines the moral and legal foundations of society. I reject the notion that the death penalty has any essential deterrent effect on potential offenders. I am convinced that the contrary is true - that savagery begets only savagery.

My present work concerns the problems connected with the theory of elementary particles, the theory of gravitation and cosmology and I shall be glad if I can manage to make some contribution to these important branches of science.

We regard as 'scientific' a method based on deep analysis of facts, theories, and views, presupposing unprejudiced, unfearing open discussion and conclusions. The complexity and diversity of all the phenomena of modern life, the great possibilities and dangers linked with the scientific-technical revolution and with a number of social tendencies demand precisely such an approach, as has been acknowledged in a number of official statements.

I could not stop something I knew was wrong and terrible. I had an awful sense of powerlessness.

You can't sit on two chairs at once.

Intellectual freedom is the only guarantee of a scientific - democratic approach to politics, economic development, and culture.