Jon Weingart, MD, discusses whether having a brain tumor means a patient needs surgery. Dr Weingart is a neurosurgeon and professor of Neurological Surgery and Oncology at Johns Hopkins Medicine. Surgery is one type of treatment for brain tumors.
Noun. 1. doctrine-a belief (or system of beliefs) accepted as authoritative by some group or school. ism, philosophical system, philosophy, school of thought.
Latin root word is religio the bind, or to tie up that is the meaning. Jesus said that true religion is caring for widows and orphans. This leads me to believe the original meaning has more to do with what you do rather than what you believe.