The system of religious belief and faith enlightenment for the great thinkers, philosophers, and scholars developed through rational thinking was called Deism. Deism is an established religion using critical thinking and observation as core tenets in the place of dogma or "relevance" scripture. Deists believe what they believe, not because they are told to believe it by an authority, but because they have found sufficient evidence to believe it for themselves. Man is the image of God.