Robin Melrose

“Here we are told that the Druids learn by heart a great number of verses, that to become a Druid requires twenty years of training, that they believe “souls do not become extinct, but pass after death from one body to another, and they think that men by this tenet are in a great degree excited to valor, the fear of death being disregarded” and that they “impart to the youth many things respecting the stars and their motion, respecting the extent of the world and of our earth, respecting the nature of things.” They worship as their divinity, Mercury in particular, and have many images of him, and regard him as the inventor of all arts, they consider him the guide of their journeys and marches, and believe him to have great influence over the acquisition of gain and mercantile transactions. Next to him they worship Apollo, and Mars, and Jupiter, and Minerva.”
― Robin Melrose, The Druids and King Arthur: A New View of Early Britain