The essays in Free Speech and Intellectual Diversity in Higher Education reflect diverse perspectives on one of the most pressing issues in higher education–the controversies over freedom of speech and its relation to intellectual diversity. Does the First Amendment apply on campuses and do its principles clarify or obscure the issues surrounding campus speech? What, after all, is the basis for those principles, and how do they relate to the purposes of the university? Is free speech truly effective without a diversity of perspectives, and to what extent is such diversity found at universities today? Does free speech discourage the inclusion of minorities or previously excluded groups? Are there specific policies that can address the issue of free speech on campuses today in ways that are fair to all parties and to the interests at stake?