"Our own conversion came at last. We began to stir against slavery. Hearts grew soft, here, there, and yonder. There was no place in the land where the seeker could not find some small budding sign of pity for the slave. No place in all the land but one - the pulpit.
It yielded at last; it
always does. It fought a strong and stubborn fight, and then did what it
always does, joined the procession - at the tail end. Slavery fell. The
slavery text remained; the practice changed, that was all."
-- Mark Twain, in Europe and Elsewhere.