I need to debunk my professor

On the Wednesday after spring break, I had my first conference with Mr Clouser. And he's challenged me massively to my ideals of beauty. He said the reason why many people don't think convulsion and contortion (think African trance) is beautiful is because of cultural differences.

No, I think on top of personal experience and the natural, observable world, the Bible has something to say about the parameters of beauty. And spiritual oppression for that matter.

Quick, I need an intelligent answer to make him accept my stand.