%0 Journal Article %T Things & Ideas: Explaining Moral Evolution in International Relations %A Amy Eckert %J Human Rights & Human Welfare %D 2004 %I %K Slavery %K abolition %K anti-colonialism %K humanitarian intervention %K norms %K constructivism %U http://www.du.edu/gsis/hrhw/volumes/2004/eckert-2004.pdf