Now, here is a smart fellow

While doing some random reading on the theory of relativity(don't ask why!), I hit upon this fellow who explained very succintly the theory of relativity.
All the words he uses are four letters or less.
Damn, he is good. (he = Albert, he is also = guy who wrote this explanation)

http://www.muppetlabs.com/~breadbox/txt/al.html