(40) "In the third leaf, and in all the other writings that followed, to help his captive nation to pay their tributes unto the Roman emperors, and to do other things, which I will not speak of, he taught them in common words the transmutation of metals; he painted the vessels by the sides, and he advertised them of the colors, and of all the rest, saving of the first agent, of the which he spake not a word, but only (as he said) in the fourth and fifth leaves entire he painted it, and figured it with very great cunning and workman ship: for although it was well and intelligibly figured and painted, yet no man could ever have been able to understand it, without being well skilled in their Cabala, which goeth by tradition, and without having well studied their books.

(38) "This tincture being used, as your Guide shall reach you, will make you young when you are old, and you shall perceive no disease in any part of your bodies. By means of this tincture also you shall find pearls of that excellency which cannot be imagined. But do not you arrogate anything to yourselves because of your present power, but be contented with that which your Guide shall communicate to you. Praise God perpetually for this His gift, and have a special care that you use it not for worldly pride, but employ it in such works which are contrary to the world. Use it rightly and enjoy it so, as if you had it not. Live a temperate life, and beware of all sin, otherwise your Guide will forsake you, and you shall be deprived of this happiness. For know this of a truth, whosoever abuseth this tincture and lives not exemplarly, purely, and devoutly before men he shall lose this benefit, and scarce any hope will there be left ever to recover it afterwards."