 Kingsley published a defense of slavery in 1828, identifying himself only as "An Inhabitant of Florida".He rationalized the institution as a necessary condition for any society, beneficial to owner and slave alike, and to the overall economy.He did not consider race the only factor that should determine servitude status, writing, "Few, I think will deny that color and condition, if properly considered, are two very separate qualities ... our legislators ... have mistaken the shadow for the substance, and confounded together two very different things; thereby substantiating by law a dangerous and inconvenient antipathy, which can have no better foundation than prejudice."