Abstract
I examine one theme within Tom Morawetz's complex jurisprudential work (stemming from Wittgenstein): the concept of a practice. After considering this theme in some detail, I then sketch a different jurisprudential approach that still proceeds within the inspiration of Wittgenstein's later philosophy. Here, I summarise Stanley Cavell's elaborate recounting of Wittgenstein's twin concepts, “criteria” and “grammar.” In a third and final section, I employ this alternative method to provide a brief example of how a Wittgensteinian approach might be made towards explicating and understanding Holmes’ classic claim regarding the need in jurisprudence to separate legal and moral concepts.