This special issue of SubStance (2007) celebrates the centennial of Henri Bergson’s Creative Evolution, published in 1907.  Since evolution is a living process and not a completed history, any understanding of it must necessarily be open-ended. If no one can have the last word, Bergson writes, the project of understanding evolution “will only be built up by the collective and progressive effort of many thinkers, of many observers also, completing, correcting and improving one another.”
    Included in the issue are articles from Bergson scholars from the United States, Japan, France and Great Britain. Topics in the issue range from Bergson’s encounters with Darwin, Nietzsche, Derrida and Deleuze, and from the analytical to the metaphysical.

In the variegated history of the philosophical definitions of man, one has survived since it has been given the status of the self-evident. The definition in question comes from Aristotle’s Politics: “the human is a political animal” (1253a3). There is something indisputable about this characterization: humans are, indeed, the most social of animals – they are denizens of the polis with its institutions and laws, its rulers, judges and generals.  It would be difficult to contend that any other animal has recourse to the political as much as the human.
    Aristotle’s Politics need not be surrendered to the strictures of humanism. It remains amenable to the new schema for the political animal that we are sketching here. Each article collected in this issue responds – in its own way and by establishing its own protocols – to the exigency of the animal as it was formulated in Aristotle’s Politics. Each article is an act of response, a moment of interruption.