Walter Pater's book Marius the Epicurean is split into two parts. After the success of the first book, the second one is called Marius The Epicurean Vol 2 'His Sensations and Ideas.' The book goes on with the story of Marius, a young Roman prince who is looking for a way to live that will make him happy. In this volume, Marius goes to Athens to study philosophy with Marcus Aurelius, who is a Stoic scholar. Marius's time in Athens gives him a chance to think about duty, ethics, and the nature of the soul. He looks at how art and life are connected and how beauty and pleasure can help us understand the world better. The book is also known for how it looks at the conflict between Christianity and paganism. Marius struggles to find a balance between his Christian faith and his desire to live a fun life.