I agree laws should be based on principles, but I do wonder where to draw the line. I've noticed that any system that is built up from axiomatic principles and

I agree laws should be based on principles, but I do wonder where to draw the line. I've noticed that any system that is built up from axiomatic principles and reasoning usually ends up out of touch with reality as well. It's likely we need to have evidence feeding back into a principled-based system.