Excellent article. It is refreshing to read someone who deals in ideas and specifics instead of invective. Most of those who are so quick to call names probably don't understand what the labels mean to begin with. This was a refreshing change.
That is a good article. There are a lot of differences between neocons, libertarians religious conservatives and paleoconservatives. Ronald Reagan did a good job of getting most of these groups together, however uneasily. I don't know if much good will happen until we find another Reagan. If we get involved in squabbles and lose sight of the fact that we are being threatened by new forms of communism and fascism then we are sunk.
Today the liberal and conservative labels take many forms that usually result in alignment with a particular political party. Simplistic definitions exist for each but they are rarely adequate.
A simplistic definition would be that conservatives favor smaller central government whilst liberals favor a larger central government.
Another simplistic definition would be that conservatives favor amending the words of the Constitution to bring about change whilst the liberals favor re-interpreting the words of the Constitution to bring about change.
I prefer the label of classical liberal. When the liberal label first appeared in American politics it simply meant a person who viewed an issue from all sides and then took their own decision regardless of the position of any political party.