Here’s my talk on “What is the Common Good?” for the new Oxford Law/Blackfriars project on Law and the Common Good. It’s not a talk on political theory or theology, but on constitutional and administrative law. Both Anglo-American and European law, past and present, are full of provisions referring to the “common good,” “general welfare,” “public interest,” “public order,” and so forth; these have to be construed some way or other. Thanks to my interlocutors, Profs. Ryan Meade and Chris Conway.