 Numbers, propositions, and universals (i.e., properties and relations) are not the only things that people have taken to be abstract objects. As we will see below, people have also endorsed platonistic views in connection with linguistic objects (most notably, sentences), possible worlds, logical objects, and fictional characters (e.g., Sherlock Holmes). And it is important to note here that one can be a platonist about some of these things without being a platonist about the others — e.g., one might be a platonist about numbers and propositions but not properties or fictional characters.