Einstein discovered a law of physical change: the way to convert a single particle of matter into enormous physical energy. Might there not also be, as Gandhi suggested, an equally incredible and (as yet) undiscovered law of spiritual change, whereby a single person or small community of persons could be converted into an enormous spiritual energy capable of transforming a society and a world? I believe that there is, that there must be, a spiritual reality corresponding to E = mc squared, because . . . from the standpoint of moral freedom, humankind is sentenced to extinction without it.

—James W. Douglass

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