Since everyone else in the anglican blogosphere is posting bits of Fr. Aidan's essay, here is one of my favorites:
The purpose of the Ecumenical
Movement is not to arrive at a lowest common
denominator Christianity. It is to restore the integrity
of Christendom on the basis of the total revelation
given to the Church by Christ and daily rendered a
living reality by the Holy Spirit.
Read the whole 40 page essay on Anglican Uniatism here.