It is just because civilization is ever evolving, changing, and becoming more complicated, that experts find it so difficult to define it in explicit terms.
“If DreamWorks and Disney need that name to sell the cartoon and get people in the seats, that's what they need. It's not fair, but there's plenty of other work for us to do.”
“These are all elements, but the main thing we can do in the Middle East is encourage the reformist elements.”