My sample was a close reading of a specific section of the Phenomenology of Spirit, and I didn't really use all that much secondary sources, except for mentioning in an endnote a couple of sources whose account of the section I found inadequate. And I did pretty well last season. So I wouldn't worry about it unless it's something that receives a lot of attention and for which not engaging the secondary literature would be obviously odd. So there's not a whole lot on what I wrote about, "Culture and its realm of actuality" in the Phenomenology, whereas, for example, writing a paper about Kant's Transcendental Deduction of the Categories and not engaging with Ameriks and Strawson and so forth would be odd.