Einhard,
Early Lives of Charlemagne by Eginhard and the Monk of St Gall edited by Prof…
“ Now, Charles was beyond all kings most eager in making search for wise men and in giving them such entertainment that they might pursue philosophy in all comfort. Whereby, with the help of God, he rendered his kingdom, which, when God committed it to him, was dark and almost wholly blind (if I may use such an expression) , radiant with the blaze of fresh learning, hitherto unknown to our barbarism. But now once more men’s interests are turning in an opposite direction, and the light of wisdom is less loved, and in most men is dying out. ”

