"...was not simply one of the mystery religions like Mithraism, but rather, Mithraism plus an ethical system from one of the philosophies (say Stoicism), plus a public ceremonial system (say the cult of Magna Mater). In other words, part of Christianity's winning formula was that it reduced all of these areas to the simple story of Jesus Christ and sold this story through a disciplined marketing hierarchy. The opposition never got its act together."
--Kenneth Humphreys, Jesus Never Existed, p.98 of the paperback.
Jesus Never Existed