From my earliest days I had a passion for science.

I did not imagine that the second half of my life would be spent on efforts to avert a mortal danger to humanity created by science.

I saw science as being in harmony with humanity.

Indeed, the whole human species is endangered, by nuclear weapons or by other means of wholesale destruction which further advances in science are likely to produce.

But the first the general public learned about the discovery was the news of the destruction of Hiroshima by the atom bomb. A splendid achievement of science and technology had turned malign. Science became identified with death and destruction.