¹O'Brien, Henry. The Round Towers of Ireland: Or, The History of the Tuath-de-danaans. London: Parbury and Allen, 1834. xlii.
O'Brien further noted: "These, I conceive, were the halcyon days of Ireland's legendary and romantic greatness. In this sequestered isle, aloof from the tumults of a bustling world, this Tuath-de-danaan colony, all of a religious race, and all disposed to the pursuits of literature, united into a circle of international love, and spread the fame of their sanctity throughout the remotest regions of the universe." (p. 517)
Obrien's text may be read in its entirely here.