Aristocles was born from the union of two of the oldest families in Athens. He grows up listening to stories, myths and music. He owns more than a hundred objects, which in an empty world, as opposed to the overflow of ours, is a lot. They say of him that as a child he was so well-behaved that no one ever saw his teeth, because he smiled little and laughed less. He experienced his first real grief at the age of twenty-eight, on the day Socrates died. Philosophy is already born, but Socrates is not a philosopher: he walks around barefoot, followed by a host of young boys intrigued by his speeches; he is able to change forever those who listen to him. Aristocles is one of them. It starts and proceeds thus, seeking to bring the distant lives of the great ones closer to our own small lives close by, this short history of Plato, written by a very young author for the use of young people like herself but also for those who have met Plato in school and then forgotten him. Today when the risk is not dying for an idea but the lack of ideas to believe in, looking back is essential.