The book comprises two philosophical essays that delve into the nature and significance of friendship and the challenges and wisdom of old age. The first essay explores the meaning of true friendship, its role in society, and its importance as a foundation for moral and happy life, emphasizing mutual respect, virtue, and genuine affection. The second essay addresses the concerns of aging, arguing against the common perceptions of old age as a miserable phase. Instead, it presents old age as a period capable of great mental and intellectual activity and satisfaction, provided one has lived a life based on virtue and fulfillment. Through these essays, the text provides timeless insights into handling some of life's most profound transitions with grace and wisdom.

"On Obligations" is a philosophical treatise that explores the ethical and moral duties of individuals in society. Written in the form of a dialogue, the text delves into the nature of justice, the importance of the common good, and the role of virtue in personal and public life. The author articulates a framework for understanding and fulfilling one's obligations, which he argues are derived from both natural law and human reason. Through a detailed examination of various ethical dilemmas and practical situations, the work provides insights into how individuals should act with integrity and wisdom to uphold both legal and moral responsibilities.

"Epistulae" is a collection of personal correspondence written by a prominent lawyer and author from ancient Rome. These letters provide a detailed insight into the social, political, and domestic aspects of Roman life during the late first and early second centuries. The author writes about a wide range of topics, from descriptions of daily routines and domestic affairs to significant events of the time, including the eruption of Mount Vesuvius. The letters are valued not only for their literary elegance but also for their detailed historical accounts and personal reflections, offering a unique glimpse into the author's character and the times in which he lived.