About the book: 2020 / The dilogy “On old age” and “On friendship” and three books “On responsibilities” by Cicero - an expanded program of creation wise state, comparable to Plato's Republic. Cicero was always realistic in his reasoning, and he gave many examples that touched the soul of every Roman. The ability to move from philosophical generalizations to historical lessons, a friendly tone, wit and drama, experience in resolving conflicts and analyzing complex situations make Cicero’s legacy in demand today. The preface explains the historical and philosophical context for the creation of these works. The publishing layout is saved in a4.pdf format.