The Epistulae Morales ad Lucilium "Moral Letters to Lucilius, also known as the Moral Epistles and Letters from a Stoic, is a collection of 124 letters that Seneca the Younger wrote at the end of his life, during his retirement, after he had worked for the Emperor Nero for more than ten years. They are addressed to Lucilius Junior, the then procurator of Sicily, who is known only through Seneca's writings. Regardless of how Seneca and Lucilius actually corresponded, it is clear that Seneca crafted the letters with a broad readership in mind.