I have a theory about the two main differences between liberals and conservatives.
Conservatives recognize that the needs of the many outweigh the needs of the few; some people will slip through the cracks of freedom, but most people will be better off. Liberals want us to all suffer equally.
The beliefs of conservatives are more likely to change how they actually live. Liberals think that the government should force everyone else to live as they think best. That is as long as it doesn't require sacrifice/lifestyle change on their part. I have a perfect story to go with this from my days as a landscape-architect-in-training, but I think I will have to work on it a bit before posting. Maybe tomorrow.