Hurtdesk 2.0

I was thinking about copyright and licenses today. If I understand correctly, if you create a work you automatically have copyright of that work. Someone created, say, the Zero-clause BSD license, which ought to mean that that person has copyright for the actual license text. Does that mean that we are not allowed to copy the license text without the license authors approval? The license refers to other works, but not itself. It would need to reference itself, or create some kind of infinite regress turtles all the way down kind of situation?