I regard the death penalty as a savage and immoral institution that undermines the moral and legal foundations of society.

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

A country which does not respect the rights of its own citizens will not respect the rights of its neighbours

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

You can't sit on two chairs at once.

Both now and for always, I intend to hold fast to my belief in the hidden strength of the human spirit.

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.