There is nothing absolute truth in universe--is this true? If true, then this statement is not true. I always feel this is a kind of linguistic-hostage situation. "You must admit absolute truth exists, or all of your statements are meaningless!" Being "eternal absolute" obviously has no "origin." The "beginning" is merely the "end" of the previous, as the "end" is merely the "beginning" of what is to come.
We have a hard time on defining everything, and almost nobody is ever happy with any explanation. If you can explain it, they will tell you that is not the definition and go on thinking whatever they want.