Old age, friendship and duties in Marcus Tullius Cicero’s philosophy

In the modern world, age is deemed old from the age of seventy-six. An ancient Roman orator, politician and philosopher Marcus Tullius Cicero was reasoning about the full-scale old age in his essay “On Old Age. On Friendship. On Duties”. In Romans' opinion, among whom was Cicero, the process of ageing starts at forty-six years old and it is the people of this age who are the main topic of Cicero's essay.