He formed a company to sell products related to his teachings called Eckhart Teachings. The authenticity of certain teachings and doctrines have been questioned. Esoteric Christian Rosicrucian schools provide esoteric knowledge related to the inner teachings of Christianity. Elements from the teachings and beliefs of these systems became incorporated into Chinese mythology. Dollar is known for his controversial teachings regarding prosperity theology. And being absolutely faithful to the core principles of Jesus' teachings. Jesus says he teaches in parables because many are opposed to his direct teachings. It is a compendium of all of the main theological teachings of the Catholic Church. He emphasized the importance or pursuing occupations that adhered to Buddhist teachings. It was adapted well to the teachings of Christianity. Itinerant preachers spread the teachings of Wycliffe. Epicureanism is a system of philosophy based upon the teachings of Epicurus ("c". Kemetic Orthodoxy grew out of the personal teachings of Siuda. They disagree with some of the traditional teachings of the church.