" To wit, that this dreadful matter brought from these downtrodden people no outburst of rage against these oppressors.  They had been heritors and subjects of cruelty and outrage so long that nothing could have startled them but a kindness.  Yes, here was a curious revelation, indeed, of the depth to which this people had been sunk in slavery.  Their entire being was reduced to a monotonous dead level of patience, resignation, dumb uncomplaining acceptance of whatever might befall them in this life.  Their very imagination was dead.  When you can say that of a man, he has struck bottom, I reckon; there is no lower deep for him. "

― Mark Twain , The Complete Mark Twain Collection