"To understand man on the basis of Christ, who is himself understood on the basis of God, in turn rests on the crucial intuition of a radical phenomenology of Life, which is precisely that of Christianity: namely, that Life has the same meaning for God, for Christ, and for man. This is so because there is but a single and selfsame essence of Life, and, more radically, a single and selfsame Life. This Life – that self-generates itself in God and that, in its self-generation, generates the transcendental Arch-Son as the essential Ipseity in which this self-generation comes about – is the Life from which man himself takes his transcendental birth, precisely since he is Life and is explicitly defined as such within Christianity. He is the Son of this unique and absolute Life, and thus the Son of God. The tautological expression “Son of God” – tautological in that there are no sons except in Life and thus in God – conceals the profound truth that man’s essence, that which makes him possible as what he really is, is not man as we understand him, and still less some humanitas or other. Rather, it is the essence of divine life – that which makes him one of the living, and that alone."