This book contains the first book of Cicero's Tusculan Disputations, a series of philosophical dialogues on topics such as death, grief, and moral virtue. The text is presented in the original Latin with an English translation by Thomas Chase, making the work accessible to both scholars and general readers. The commentary provides historical and cultural background to the work. 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.