"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."