In this chapter Marion claims that faith and reason are not opposed to each other, as is often supposed, but faith has its own rationality, namely unfolding the reason of the “logos” as the gift of love. Christians have a duty to rationality. Modernity reduces everything known to objects and hence leads to nihilism. We must exercise a “greater reason,” namely a rationality of the flesh and of love, which gives Christ’s logos to the world as gift. As Christians we must hand on the love we have received. Such love is unconditioned and enables both true self-knowledge and genuine knowledge of the other.