Emerald Tablet
By the early sixteenth century, the writings of Johannes Trithemius (1462–1516) marked a shift away from a laboratory interpretation of the "Emerald Tablet", to a metaphysical approach. Trithemius equated Hermes' "one thing" with the monad of pythagorean philosophy and the anima mundi. This interpretation of the Hermetic text was adopted by alchemists such as John Dee, Heinrich Cornelius Agrippa, and Gerhard Dorn.