The cold war is over, but cold war thinking survives.

We are told that the possession of nuclear weapons - in some cases even the testing of these weapons - is essential for national security. But this argument can be made by other countries as well.

The cold war is over, but cold war thinking survives.

I saw science as being in harmony with humanity.

My third appeal is to my fellow citizens in all countries: Help us to establish lasting peace in the world.

This is the reality of nuclear weapons: they may trigger a world war; a war which, unlike previous ones, destroys all of civilization.

When the START 2 treaty has been implemented - and remember it has not yet been ratified - we will be left with some 15,000 nuclear warheads, active and in reserve. Fifteen thousand weapons with an average yield of 20 Hiroshima bombs.