As the title indicates, the present volume contains a collection of my recent work on Kant's theoretical and practical philosophy. All of the essays dealing with the theoretical philosophy were written subsequently to the publication of Kant's Transcendental Idealism (1983); those dealing with the practical philosophy have been written since the appearance of Kant's Theory of Freedom (1990). Together, these essays constitute my efforts to reply to my critics and to clarify, develop and apply some of the ideas expressed in these two books. In some cases, this has led me to retract or significantly modify earlier views. Since most of these essays were written either for presentation at symposia or international conferences, or in response to an invitation to contribute to a volume of one sort or another, much of my recent work is scattered and not readily accessible. Of itself, however, this fact hardly justifies a collection of essays such as is contained in this volume. To my mind, at least, if such a collection is to be warranted it must be because its contents possess a certain thematic unity and advance the discussion in some significant way. I am confident that the first criterion is met by the contents of this volume, but I must leave it to the reader to judge with respect to the second.