I say, there is scarce any city or borough in Europe, where blood has not been spilled for religious quarrels; I say, that the human species has been perceptibly diminished, because women and girls were massacred as well as men. I say that Europe would have a third larger population if there had been no theological disputes. In fine, I say, that so far from forgetting these abominable times, we should frequently take a view of them, to inspire eternal horror for them . . . . It is our age to make amends by toleration, for this long collection of crimes, which has taken place through the lack of toleration during sixteen barbarous centuries.” Voltaire, quoted in Absolutism to Revolution 1648–1848, Herbert H. Rowen, ed., 1963 What major theme of the Enlightenment do the ideas presented in this passage express?