TO MAXIMILIAN.

...and the so-called SWEATS of Archimedes original: SVDORES. A classical metaphor for intense intellectual or physical labor. can be compensated here by the most excellent Fruit: even if he did not achieve the specific Problem he attempted. In Great Things, to Have Willed Is Enough. original: In Magnis Voluisse Sat est. A famous quote from the Roman poet Propertius, suggesting that the nobility of a great endeavor justifies the effort even if the goal isn't fully reached.

4. With what great wonder might the MUSICIAN be rightly and most deservedly struck: when, without Motion and Sound, he understands here inexplicable and Celestial HARMONIES?

5. And will not the ASTRONOMER most greatly regret having endured the cold of the open sky, the night watches, and his labors; when here, without having to endure any injury from the Air: Under a roof, with windows and doors closed on all sides at any given Time, he can most exactly observe with his eyes the Revolutions periphoras | The circular orbits or paths of the heavenly bodies. of the Celestial Bodies? And this indeed, without any Mechanical Instruments made of Wood or Brass?

6. And the expert in PERSPECTIVE will condemn the dullness of his own Ingenuity: He who has labored by all means to create a Mirror according to the line of a Parabolic Conic Section A parabolic mirror, which focuses light to a single point to create intense heat. (properly rotated in a circle); so that he might agitate any proposed Material (subject to fire) with incredible Heat from the Solar Rays: When, here, from the Trigonic Section of a Tetrahedron A tetrahedron is a four-sided triangular pyramid. Dee suggests his Monad symbol contains a geometric secret for a more powerful burning-mirror., a Line is shown; from whose Circular Form a mirror can be made; Which (even with Clouds drawn beneath the Sun) can reduce any Stones, or any Metal whatsoever, into what are almost impalpable Powders, by the force of Heat (truly the greatest).

7. And, he who has sweated his whole Life in the subtle investigation of WEIGHTS: How well will he judge his Labors and expenses to have been spent; when, here, the Mastery of our MONAD will teach, through the most certain Experience, that the Element of Earth can float upon Water?