I once read an essay (years ago, so no hope of naming the author, sorry) that suggested the true difference between conservative and liberal worldviews is that liberals believe everyone should be happy, and conservatives believe everyone should have the opportunity to be happy.
PJ O'Rourke actually expressed the same idea in a different way when he said conservatives believe in God and liberals believe in Santa Claus. (Not necessarily literally in either case, but as ideals.)
Of course nothing in life meets such a binary definition, but I often find that political arguments really can be boiled down to one side wanting to give X to everyone and the other wanting to make X available to the people who deserve it.
But since we can't give everything to everyone, we're stuck with defining who "deserves" X over and over again. And that causes all the trouble.