Paracelsus (1493 – 1541) was a Swiss physician, alchemist, and astrologer. Between 1517 and 1524 he worked as a military surgeon, and in this capacity he travelled widely across Europe, and possibly as far as Constantinople. In this way he gained considerable knowledge of several different medical traditions. His hermetical beliefs were that health in the body relied upon the harmony of humans (microcosm) and nature (macrocosm), thus he was one of the first medical professors to recognize that physicians required a solid academic knowledge in the natural sciences, especially chemistry. Paracelsus pioneered the use of chemicals and minerals in medicine.
Quotes by Paracelsus…
Man does not know himself and does not know how to use the energies hidden in him, nor does he know that he carries the stars hidden in himself and that he is the microcosm, and thus carries within him the whole firmament with all its influence.