Whenever it is necessary, you will say. But what any free man would call necessity is not merely present now, but is long ago past, and from the necessity that constrains a slave we must surely pray to be delivered. Do you ask the difference? The strongest necessity that a free man feels is shame for his own position, and I know not if we could name a stronger; but for a slave necessity means stripes and bodily outrage, unfit to name here, from which Heaven defend us!