In The Concept of Nature, Alfred North Whitehead discusses the interrelatedness of time, space, and human perception.The idea of objects as 'occasions of experience', arguments against body-mind duality and the search for an all-encompassing 'philosophy of nature' are examined, with specific reference to contemporary (Einstein, with whose theory of relativity he has some complaints) and ancient (Plato, Aristotle) approaches. (Summary by mb)