Legislative enactments, presidential actions, and amemdments to the constitution are all things which publicly announce changes in the law of the land, providing foreknowledge of the changes in the legal framework within which free people may act and plan. Judge-made innovations are, in effect, ex post facto laws, which are expressly forbidden by the constitution and abhorrent to the very concept of the rule of law.
— Thomas Sowell, The Quest for Cosmic Justice