Georgii Agricolae medici Bermannus, sive de re metallica

...have regretted the labor and expense, whereas only the vein of divine scriptures truly enriches a man. Our Georgius has successfully played the prelude, and we expect nothing mediocre from that talent. I see several young men equipped to restore the medical art, among whom is Simon Ricuinus, who, besides non-vulgar learning, possesses the highest dexterity of character and talent, and Ioachimus Martianus Gandauus, whose talent seems to promise something exact and polished. These προγυμνάσματα preliminary exercises of Georgius show us no less hope. Therefore, I do not regret this labor, nor do I doubt that Hieronymus Frobenius will willingly excuse me in your favor, as well as for the sake of studies. Fare well. Freiburg, 12 days before the Kalends of March, 1529 February 18, 1529.