A very interesting book by F.C.T. Moore on Bergson's philosophy. While it does not cover Bergson's work in anywhere near the detail that say Mullarkey or Ansell Pearson do in their respective books on Bergson, Moore approaches his book in a similar way to Suzanne Guerlac in her study: "Thinking in Time" where aspects of Bergson's books are studied piece by piece. Moore looks mainly at "Time and Free Will" and "Matter and Memory" although only at certain aspects leaving out others (there is also a brief study of "Laughter" and "The Two Sources of Morality and Religion"). The unique thing about this book is how Moore analyses aspects in a new, unexpected way. This is especially true of the chapter on duration (what Moore calls durance). On the other hand just when it becomes interesting the study is stopped leaving the reader wanting more. It's too bad Moore did not write a more detailed analysis fully investigating these aspects. It is in this sense that the book is a little disappointing.