Donald Davidson contributed more deeply to our understanding of language, thought, and reality than perhaps any other recent philosopher. His discussions of skepticism are sometimes seen as peripheral to those contributions. As I read him, Davidson argued against three skeptical worries. First, beliefs are true or false relative to a conceptual scheme. Second, beliefs generally are false. Third, other minds and an external world do not exist. Call those worries ‘conceptual relativism’, ‘falsidicalism’, and ‘solipsism’, respectively. I investigate how Davidson’s arguments (...) are connected. I then show that those connections are so systematic that Davidson ultimately offers a single, master argument with two premises. Premise one is that I think. Premise two is an application of his account of radical interpretation. Focusing on the systematicity of Davidson’s anti-skeptical arguments demonstrates that discussions of skepticism were more central to his views than often appreciated and shines fresh light on his project overall. (shrink)