“it is requisite that the Sunne have a fitte and consonaunt receptacle for his seede and tincture: and this is Philosophers silver. And therefore it followes, the Moone is his mother.” - Hortulanus. Hortulanus Commentary on the Emerald Tablet
"Now my son, the words of the philosophers are true and founded on fact, for it is impossible for common gold and silver to make other, complete corpora perfect, unless, as I said before, the corpus Solis and Lunae, is reborn through the water and spirit of the prima material and an enlightened spiritual, clarified, eternal, fixed and subtle, all penetrating body grows from this which will purify other perfect corpora and multiply. Therefore the philosophers have said of this: Such works are performed on their stone so that the tincture in it can be improved. This is why it is necessary for this stone to be treated better and more subtly than common gold and silver."
- A Magnificent and Select Tract on Philosophical Water