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. – Joseph Rotblat

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. – Joseph Rotblat

At a time when science plays such a powerful role in the life of society, when the destiny of the whole of mankind may hinge on the results of scientific research, it is incumbent on all scientists to be fully conscious of that role, and conduct themselves accordingly. – Joseph Rotblat