Book excerpt: This volume offers collective exploration of major aspects of Christian Wolff's ethics. It focuses on what is arguably Wolff's most important and influential text on moral philosophy, namely his Rational Thoughts on the Action and Omission of Human Beings for the Promotion of their Happiness, originally published in 1720 and commonly referred to as the German Ethics to distinguish it from his later Latin works on ethics. The contributions cover a range of topics, including the systematic structure of the text itself and the relation between Wolff's ethics and the preceding natural law tradition, and many of the chapters consider the development of the basic tenets of Wolff's moral theory in his later Latin writings. Throughout the volume, special attention is given to the core concepts of Wolff's moral philosophy, such as obligation, perfection, the highest good, and happiness. Other notable topics include Wolff's conception of moral judgment and moral education, as well as the role of psychology and anthropology in his ethical thought. The volume also includes discussion of the influence of Wolff's ethics on subsequent figures such as C.A. Crusius, G.F. Meier, and Kant. As a whole, the volume seeks to show the importance of Wolff's German Ethics within the history of ethics as well as inspire others to engage with his thought.