Philosophical theorizing about language now involves an increasing emphasis on empirical work and a renewed convergence with philosophy of mind, formal semantics and logic. This new text reflects this evolution. Philosophical Perspectives on Language is distinguished in several important respects from other introductions to the topic. Rather than looking at philosophy of language as a collection of (at best) loosely related topics--speech acts, demonstratives, sense and reference, truth and meaning, etc.--this book is organized around a unifying theme: language as a system of symbols that is known and used.