David MacRitchie, The Testimony of Tradition
“ For, although the accounts of the Feenic "heroes" have been preserved to us in the Gaelic language, as those of the Longobards have been preserved in Latin, it does not follow in the one case more than in the other, that the language of the chronicle was the language of the chronicled. Whatever may have been wrought eventually, by time and intercourse, the Gaelic-speaking people appear originally as the plunderers of "the hidden places of the Fians and Fairies." ”
