Then, thus passing over what relates to the essence of the Son as having been already discussed, he treats of the sense involved in “generation,” saying that there are diverse generations, those effected by matter and art, and of buildings,--and that by succession of animals,--and those by efflux, as by the sun and its beam. The lamp and its radiance, scents and ointments and the quality diffused by them,--and the word produced by the mind; and cleverly discusses generation from rotten wood; and from the condensation of fire, and countless other causes. · Sacred Texts