In his treatise, The Constitution of Liberty (1960), F. A. Hayek emphasized the central role of the generality principle, as embodied in the rule of law, for the maintenance of a free society. This book extends Hayek’s argument by applying the generality principle to politics. Several important policy implications emerge. There are no direct implications to suggest how much governments should do. The argument suggests strongly however, that, whatever is done politically, must be done generally rather than discriminatorily.