Everything is relative?

In Einstein's theory says that "Everything is relative". It would be wrong if everything in this universe is relative. If we say there must be other parameters relative who declared "anti" from the clause.
So ... when there is something that is relatively sure that something is NOT relative. Just as when you are in a dark room, your conclusion will be valid if you've found a bright room. And this universe is a creation that is not relative is called to the LORD.