Tim Button explores the relationship between minds, words, and world. A familiar sceptical worry is that the world might seem to be one way, but in fact be radically different. All of our beliefs might be false. But an even more alarming sceptical worry is: might our beliefs all fail entirely to be about the world? The worry here is that our beliefs are not even capable of being true or false. In this book, Button shows how the two forms of scepticism are deeply related. Both forms of scepticism can be overcome, at least in their most extreme forms, but there is a limit to how much we can show. We must position ourselves somewhere between internal realism and external realism, and we cannot hope to say exactly where. We are forced to philosophise in the absence of any comforting picture. We are realists, for what that is worth, and realists within limits.