There was this famous clash of civilization thesis from Samuel Huntington, a political theorist. And the idea was that Western civilization is at war with Islam and maybe some of the other civilizations around the world. And I don't agree with that. But I do think there is such a thing as Western civilization. I think it starts with the Greeks and the Romans. Then it goes through the Enlightenment - or the Reformation, the Enlightenment. It goes through the scientific age. And it somewhat defines some of the cultures and mores of Europe and North America and some other countries.