What Do You Believe That You Cannot Prove?

There is some really thought provoking stuff over at esr.ibiblio.org - Armed & Dangerous - (esr.ibiblio.org/index.php?p=184 full story here), an excerpt follows below:

"I believe, but don?’t know how to prove, a much stronger version of the Sapir-Whorf hypothesis than is currently fashionable. That is, I believe the way humans think is shaped in important ways by the linguistic categories they have available; thinking outside those categories is possible but more difficult, has higher friction costs. Accordingly, I believe that some derivation of Alfred Korzybski?’s discipline of General Semantics will eventually emerge as an essential tool of the first mature human civilizations."