These substantial selections from The Search after Truth , Elucidations of the Search after Truth , Dialogues on Metaphysics , and Treatise on Nature and Grace , provide the student of modern philosophy with both a broad view of Malebranche's philosophical system and a detailed picture of his most important doctrines. Malebranche's occasionalism, his theory of knowledge and the 'vision in God', and his writings on theodicy and freedom are solidly represented.