From a fascinating Slate article about why Robert Nozick came to reject the libertarianism his younger self once inspired:When the facts go against you, resort to "values." When values go against you, resort to the mother of all values. When the mother of all values swoons, reach deep into the public purse with one hand, and with the other beat the public senseless with your dog-eared copy of Atlas Shrugged.
Definitely worth the read...