"The Druids had schools in the forests, where youths committed to memory certain maxims in verse, inculcating the worship of the gods, bravery in battle, respect to chastity of women and implicit obedience to Druids, magistrates and parents. These verses sometimes contained an allegorical meaning which was explained under an oath of secrecy to those educated for the higher orders of the priesthood. They were divided into three classes, the Druids proper, who were the sole judges and legislators, presided at the sacrifices and were the instructors of the novitiates. They were dressed in white robes. The second class were the Bards, who accompanied chiefs to battle and sang hymns to the god of war. They had to undergo a novitiate-ship of twenty years, during which they committed to memory the traditionary songs, the exploits and deeds of daring and valor of past chiefs. After passing the customary ordeals and examinations, they were given to drink of the waters of inspiration, which we are inclined to think was the same as the juice of the soma plant amongst the Hindoos; after which, like the Brahmans, they were said to be twice born and were henceforth held in the highest respect and veneration by their countrymen. The color of their garb was green."