Human beings, who are almost unique in having the ability to learn from the experience of others, are also remarkable for their apparent disinclination to do so. You must not lose faith in humanity. Humanity is an ocean if a few drops of the ocean are dirty, the ocean does not become dirty.
I must refuse to believe that the Germans contemplate with equanimity the evacuation of cities like London for fear of destruction to be wrought by man's inhuman ingenuity.