People can faintly imagine the mind of about half the world, and do not make the faintest effort to imagine the mind of the other half. They divide the whole earth into two mutually menacing armies, and then call one of them the peace of the world and the other the disturbers of the peace. This is certainly not the way to insure any sort of peace. Peace will only begin to be possible when we try to do justice to the side with which we do not feel sympathy, and earnestly try to call up in our own imagination the sorrows we have not suffered and the angers we do not feel.

-June 25, 1932, Illustrated London News
[quoted in Gilbert!, May/June 2018]