"When people talk....as if the Crusades were nothing more than an aggressive raid against Islam..."

When people talk, for instance, as if the Crusades were nothing more than an aggressive raid against Islam, they seem to forget in the strangest way that Islam itself was only an aggressive raid against the old and ordered civilisation in these parts. I do not say it in mere hostility to the religion of Mahomet; as will be apparent later, I am fully conscious of many values and virtues in it; but certainly it was Islam that was the invasion and Christendom that was the thing invaded. An Arabian gentleman found riding on the road to Paris or hammering on the gates of Vienna can hardly complain that we have sought him out in his simple tent in the desert. The conqueror of Sicily and Spain cannot reasonably express surprise at being an object of morbid curiosity to the people of Italy and France.

-The New Jerusalem (1920)