To prove that he did so using a libertarian argument, I guess it is a matter of opinion on if the following is a libertarian concept or not:
"At the heart of liberty is the right to define one's own concept of existence, of meaning, of the universe, and of the mystery of human life."To me, it strikes me as being such.
Why does that sound like a libertarian argument? That sounds more like something that you'd find in It Takes a Village.