In one essential point, I fear, we are all deficient: they are nowhere sufficiently instructed. I am far from recommending it to you, at once to set them all free; because to do so would be an heavy loss to you, and probably no gain to them: but I do entreat you to make them some amends for the drudgery of their bodies by cultivating their minds. ... though they still continue to be your slaves, they shall be delivered from the bondage of corruption into the glorious liberty of the children of God.