Matthew Arnold,
Celtic Literature
“ It is worth noticing that the masterpieces of the spiritual work of Indo-Europeans, taking the pure religious sentiment, and not the imaginative reason, for their basis, are works like the Imitation, the Dies Iræ, the Stabat Mater—works clothing themselves in the middle-age Latin, the genuine native voice of no Indo-European nation. The perfection of their kind, but that kind not perfectly legitimate, they take a language not perfectly legitimate ”
