Kai Nielsen has been the towering figure of Canadian philosophy over the last forty years. In this discussion and appreciation of Nielsen's work, highly respected specialists in the philosophy of religion, philosophical methodology (or metaphilosophy), and moral and political philosophy consider various aspects of his voluminous contributions and, at the same time, provide broad access to current philosophical debates. The volume contains not only twenty original papers on Nielsen's thought, but also his detailed responses to these critical essays. Among the outstanding contributors are Antony Kenny (philosophy and religion), Richard Rorty(methodology/metaphilosophy), Steven Lukes (Marxism), Norman Daniels (global justice), and Kok Chor Tan (nationalism). Despite the wide variety of these themes, Nielsen's body of work and his responses here show that it is possible to develop a systematic approach that links difference areas of philosophy within one perspective. This stimulating collection will thus attract readers in many different specialities.