In my book Justifying Intellectual Property (JIP), I wrote about what I call the “foundations” of the field of intellectual property (IP) law. I tried to distinguish between a foundational level of discourse and another level, the level of basic principles. In the San Diego conference at which my book was discussed—and in several other settings as well—the most frequent and persistent line of questioning about my book centered on the relationship between these two levels. That is what this brief Article is about