Abstract

Conventionalism about essence is the view that truths about what is (and isn’t) essential to things are based upon talk and thought about the world, rather than mind-independent facts. This chapter presents motivations for conventionalism, and explains how conventionalism can be (and has been) developed to accommodate essences that can only be discovered with the help of empirical investigation, like “water is H2O” or “Obama is human”. We examine a range of objections that have been raised against conventionalism—often presented dismissively and decisively—and show how conventionalism has ample resources with which to plausibly respond to these challenges.