Thoureau, of course. But that seems to me only a beginning. It seems that civil disobedience, and the thinking that goes along with it, have only taken that first step. Here is a link to a tribute to Jacques Derrida, it seems like an introduction of sorts to his work. Although, I have not read Derrida, I am working in that strand.
http://video.google.com/videoplay?docid ... &plindex=4[/url]