This collection of works by Plotinus is a must-have for anyone interested in philosophy and spirituality. The four periods of his writings are presented in chronological order and provide insights into his development as a philosopher. The biography by Porphyry, along with the commentaries and illustrations, provide valuable context and analysis of the texts. Whether you are a student of philosophy or simply interested in exploring the works of Plotinus, this collection is an essential resource. This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.