The Stoic writings of the philosopher Seneca, who lived from c. 5 BC to AD 65, offer powerful insights into the art of living, the importance of reason and morality, and continue to provide profound guidance to many through their eloquence, lucidity and timeless wisdom. This selection of Seneca's orks was taken from the Penguin Classics edition of Dialogues and Letters, translated by C.D.N. Costa, and includes the essays On the Shortness of Life, Consolation to Helvia, and On Tranquility of Mind.