The philosophical concern of this book is epistemological in kind. It involves understanding the Socratic elentic method and how its structure introduces an important epistemological problem which is first raised in the Meno dialogue as a paradox. This paradox, named the Meno paradox, raises the problem of falsehood. Specifically the impossibility of falsehood. The Theaetetus dialogue is then analyzed in terms of how falsehood is there set up as a clearly epistemological problem. The Sophist dialogue is in turn discussed as offering a response to the problem of falsehood by revising it as a problem for semantics.