On what rational grounds can one say that Christianity is true? John Henry Newman's answer to this question lays great emphasis on the subjective, personal dimensions of knowledge, which he claims are no less reasonable than formal logical argumentation. Among these dimensions is conscience. The clearest proof for God's existence, Newman argues, is provided by the experience of God in one's conscience. In this article, I will argue that there is another similar element of Newman's thought: the immediate encounter between Christ and the mind through the impress of the image of Christ. What conscience is to the certainty of God's existence, this image of Christ is to the certainty of Christianity.
