Saint Fulgentius of Ruspe

For the cup we drink is a participation in the blood of Christ, and the bread we break is a participation in the body of Christ. Because there is one loaf, we who are many are one body, since we all share the same bread. And so we pray that, by the same grace which made the Church Christ's body, all its members may remain firm in the unity of that body through the enduring bond of love. 

-- Saint Fulgentius of Ruspe