‘Religion, philosophy, and science’ asks Are these studies separate within Romanticism or are they viewed as one? Can Romanticism be understood as a new religion? A discussion follows of the appreciation of nature as a new form of worship of God, the personification of nature, and the cult of the ancient Greeks. What is ‘the sublime’ and what is its relationship to nature, music (Beethoven), and art (J.M.W. Turner). A survey of the main philosophies of the period, their exponents and rival theories is given. The importance of Spinoza and the ‘Pantheism Controversy’ is discussed. Was Romanticism hostile to science? Which individual Romantics showed an interest in science?