"The doctrine of signatures, dating from the time of Dioscurides and Galen, states that herbs that resemble various parts of the body can be used to treat ailments of those parts of the body. A theological justification for this, as stated by botanists like William Coles, was that God would have wanted to show men what plants would be useful for."
"Similia Similibus Curantur"
"Likes Are Cured By Likes"