The excellent Ted Gioia has an article about Cordwainer Smith in the Atlantic. Here is a sentence from the piece: " In a genre that rarely shows restraint, Cordwainer Smith may have been the loosest cannon of them all."
Via Roman Tsivkin (who called Smith "the science fiction author who out-PKD'ed PKD" and Supergee.
You can track down Smith's stuff and read it if you are determined, although distribution of his work these days is the usual mess for dead SF authors. Most of his stuff is unavailable for Kindle, for example. The official website run by Smith's daughter has search tools to make it easier to find his books.
Bonus science fiction link: Dilbert and his buddies discuss Asimov's Three Laws of Robotics (March 28 strip).