"Nor do I take into account a danger of starting a chain reaction of a scope great enough to destroy part or all of the planet...But it is not necessary to imagine the earth being destroyed like a nova by a stellar explosion to understand vividly the grow ing scope of atomic war and to recognize that unless another war is prevented it is likely to bring destruction on a scale never before held possible, and even now hardly conceived, and that little civilization would survive it."

Source: Albert Einstein (2010). “Ideas And Opinions”, p.41, Broadway Books