I have no training in philosophy and came to Bergson by other texts, seduced by its language and clarity, as well as by his criticism of a certain philosophy of unnecessary questions and incomprehensible jargon. I thought so be free of it by reading the first work of Bergson. Disappointment! The book is generally difficult to access, confused in articulating his argument, and obsessed with problems that do not touch me. However, although very young, is already Bergson Bergson, and many pages of great beauty, especially when talking about the dance, the scent of the rose or his own intuition of freedom. Important text to understand what the author meant by the term, a key concept in all his thinking, we do not come out with a really clear idea, if not the painful experience of duration by it Similarly, the common sense, in a reading that sometimes one hardly sees the end ... As notes, schedules and introduction of GF editions bring nothing, quite the contrary, since the authors, trying before all to shine their own intelligence, forgetting for that reason to be teachers and merely confuse any more (while a paperback edition should be open and accessible to non-specialists). Difficult for so much difficult to stick to the critical edition of PUF and its irreplaceable documentation!