Philobiblion, by Richard de Bury, Bishop of Durham, 1345.
"Catholic doctors have determined that the deep researchers of the ancients, before God deluged the original world by a general flood, are to be ascribed to miracle and not to nature; as God granted them as much of life as was requisite for discovering and inscribing the sciences, in books, amongst which, according to Josephus, the wonderful diversities of astronomy required a period of six hundred years, that they might be experimentally submitted to observation."
The Three Restorations in the Circle of Happiness.
"The restoration of original character,
"The restoration of all that was loved,
"The restoration of remembrance from the origin of all things."