This chapter contains sections titled: An Early Definition of the Term Biodiversity The Problem of Considering Multiple Levels of Biodiversity Simultaneously If Biodiversity Is Good, Is More Biodiversity Always Better than Less Biodiversity? Does More Different Mean More Important? The Worth of An Element of Biodiversity Depends on Context Rethinking the Assessment of Biodiversity by Including Context and Particulars Interactions among Context, Particulars, Values, and Worth Exhortations References