“Unitive ecumenism, among other things, needs to be reconcieved. It can no longer be thought of, as I have done most of my life, as a matter of reconciling relatively intact and structurally still-Constantinian communions from the top down. Rather it must be thought of as reconstituting Christian community and unity from, so to speak, the bottom up. it is here that the structuring of the Church in the first centuries is especially instructive. The ecumenical journey when thus conceived will be longer but also more adventurous: renewal and unification become inseparable.”
–George Lindbeck, The Church in a Postliberal Age (Grand Rapids: Eerdmans, 2002), 8.