Frederick Douglass wrote:
--In thinking of America, I sometimes find myself admiring her bright blue sky — her grand old woods — her fertile fields — her beautiful rivers — her mighty lakes, and star-crowned mountains. But my rapture is soon checked, my joy is soon turned to mourning. When I remember that all is cursed with the infernal spirit of slaveholding, robbery and wrong, — when I remember that with the waters of her noblest rivers, the tears of my brethren are borne to the ocean, disregarded and forgotten, and that her most fertile fields drink daily of the warm blood of my outraged sisters, I am filled with unutterable loathing.
--I make no pretension to patriotism. So long as my voice can be heard on this or the other side of the Atlantic, I will hold up America to the lightning scorn of moral indignation. In doing this, I shall feel myself discharging the duty of a true patriot; for he is a lover of his country who rebukes and does not excuse its sins. It is righteousness that exalteth a nation while sin is a reproach to any people.