... lowest, must be the least pure, and therefore Philo the Jew[2] interpreting Iacobs dreame concerning the ladder, doth in an allegory shew, how that in the fabricke of the world, all things grow perfecter as they grow higher, and this is the reason (saith hee) why the Moone doth not consist of any pure simple matter, but is mixed with aire, which shewes ... — The Discovery of a World in the Moone • John Wilkins
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