The probability is overwhelming that if we had belonged to the generations we deplore, we too would have behaved deplorably. The probability is overwhelming that we belong to a generation that will be found by its successors to have behaved deplorably. Not to know that is, again, to be in error and to neglect essential work, and some of this work, as before, is work of the imagination. How can we imagine our situation or our history if we think we are superior to it?

