Through the use of letters, "Letters on The Promise of Living", shares the wisdom and principles that can lead to a meaningful and purposeful life. The center core of the letters is the six great philosophical questions. What is truth? What is beauty? What is justice? What is liberty? What is equality? What is goodness? In addition, questions of happiness, meaning, relationships, courage, sadness and suffering, and others comprise corollary letters. As Socrates said, "an unexamined life is not worth living". These letters are designed to help the reader with that examination. From the time we are born until the time we die, we all search for the meaning of life. What is life about? As children we observe, learn and grow and expand our worldly horizons and our knowledge about the universe and ourselves. We all want to become wise in how we live life and find meaning. Wisdom based on sound principles carries an obligation to live a life of purpose guided by virtues and marked by honorable behavior. "Letters on the Promise of Living" provides insight into the great philosophical questions and values that will help people lead a principled life -- -- a good life, well-lived. The book offers several important things: A conversation in letter form about the great questions of life; those things we all ponder and confront as we live our lives. These great principles and ideas form the bedrock of our values and behavior. A means to understand the great ideas upon which our society and a life well lived is based. The letters provide insight into the values and principles that have stood the test of time. A powerful format around which to examine and think about how we are living our lives. While addressing the letters to grandchildren, they are for a broader audience. They are written for everyone who reflects about life and the great questions they face. This book presents serious concepts and principles in a clear, understandable, and readable format. Adults, parents, grandparents, youth, and others think about and confront the great issues of life that are discussed in the letters.