Born near Einsiedeln in 1493, Philip Theophrastus von Hohenheim, who later called himself Paracelsus, was the son of a physician. His thirst for knowledge led him to study arts in Vienna, then medicine in Italy, but the instruction left him disillusioned.
He had learned to see nature with his own eyes, undiluted by the teachings of books. He was a rebellious spirit, hard-headed and stubborn, who travelled all over Europe and the British Isles to practice medicine, study local diseases ...