I applaud Prof. Aguas for producing this opus which is certainly a significant addition to the advancement of the study of ethics and moral philosophy in the country. The simplicity, without lack in depth, of its presentation will be a great help for students and professors alike who are looking for a reputable primer on the different ethical systems that were introduced throughout history by life’s meaning-driven persons who, shaped by the historical events of their era, confronted the existential questions such as how to live a good and meaningful life and what consists a happy life. Moreover, the supplementary primary texts to accompany the different ethical theories will certainly aid those who will make use of this book both in expounding on and verifying the doctrine of each and every ethical position discoursed by the author.
—Fr. Jannel N. Abogado

This book is a welcome and very helpful introduction to the main ethical systems in the history of Western and Eastern Philosophy. Accessible, clearly written, and comprehensive, Professor Aguas’s indispensable commentary provides an excellent complement to the wide selection of readings from primary sources. This is an essential guide for everyone who teaches or studies ethical theory.
—Dr. Brendan Sweetman