Why do we, you and I and many another protest so vehemetly against war, instead of just accepting it as another of life's odious importunities? For it seems a natural enough thing, biologically sound and practically unavoidable.
(Letter in 1931 to Albert Einstein, who had invited him to be one of an association of intellectuals' actively opposed to war.)
''...we should all of us realize that we are guilty of inhumanity. The horror of this realization should shake us out of our lethargy so that we can direct our hopes and our intentions to the coming of an era in which war will have no place''