John A. Gade,
Cathedrals of Spain
“ Three hundred years later, Alfonso X of Castile was not only a distinguished linguist and poet, but the greatest astronomer and lawgiver of his age. When the Spanish people have once more made education as general as it was under the accomplished Arabs, and adopted the division of power insisted on in a letter from Bishop Hosius to the Emperor Constantius, "Leave ecclesiastical affairs alone.... We are not allowed to rule the earth," they will take the rank their character and genius deserve among the nations. ”
