The few topics I’ve touched upon here just barely scratch the surface of theoretical questions that linguists can raise about morphology. Most of the issues we’ve looked at concern English, although if we had time to delve further into them, we’d see that they concern many other languages as well. What is important to keep in mind, though, is that there are many theoretical issues that come up only when we look beyond English to the analysis of other languages. You have also barely gotten the chance to see how one argues for or against theoretical proposals. You have learned to find, analyze, and think about morphological data. You are now ready to embark on further theoretical challenges, both looking at issues raised by word formation in the languages of the world, and learning how to make theoretical proposals and support them. We leave these challenges to your next course in morphology.