John Locke

http://en.wikipedia.org/wiki/John_Locke
http://plato.stanford.edu/entries/locke/
http://www.iep.utm.edu/locke/
http://oregonstate.edu/instruct/phl302/philosophers/locke.html

Videos
http://www.youtube.com/watch?v=X-buzVjYQvY
http://oyc.yale.edu/political-science/plsc-114/lecture-15