And what else do our modern Papists but thrust upon us, in place of circumcision, trifles of their own invention? The tendency of their whole doctrine is to blend the grace of Christ with the merit of works, which is impossible. Whoever wishes to have the half of Christ, loses the whole.
John Calvin, Letter to William Farel (May 12, 1541), concerning his observations at the Colloquy of Regensburg, an attempt at rapprochement between Catholics and Protestants, at which he served as a junior member:
So far as I could understand, if we could be content with only a half Christ we might easily come to understand one another.
Jeremiah Burroughs, Irenicum, p. 8:
It was a notable speech of Calvin to those who were offended with troubles they met with in the work of Reformation, If wee could be content with halfe a Christ, (says he) our worke would more easily goe on, we could soone bring about what wee would have, we should not meet with so much opposition, but nothing but a whole Christ will serve our turne.