"Baptista Porta, the learned Italian philosopher, notwithstanding his endeavors to show to the world the groundlessness of their accusations of magic being a superstition and sorcery, was treated by later critics with the same unfairness as his colleagues. This celebrated alchemist left a work on Natural Magic ("Magia Naturalis," 1569) in which he bases all of the occult phenomena possible to man upon the world-soul which binds all with all... He shows that...by acting in unison with their parent-source, our sidereal bodies are rendered capable of producing magic wonders. The whole secret depends on our knowledge of kindred elements. He believed in the philosopher's stone, "of which the world hath so great an opinion of, which hath been bragged of in so many ages and happily attained unto by some." Finally, he throws out many valuable hints as to its "spiritual meaning." p. 229-230"