I was reading a great article on the Council of Nicea. A discussion was being had as to the differing views that were debated concerning the Divinity of Christ and His relationship to God the Father and the God the Holy Ghost.
A total side note, but there was a great quote by Saint Augustine as to the Christian faith being a faith of thought. Christ preached first to the mind- Christianity is to be believed. The true faith is one that is believable as well as to be believed.
"No one believes anything unless one's first thought is that it is believable...not everyone who thinks believes, since many think in order not to believe; but everyone who believes thinks, thinks and believes and believes in thinking."