Writing at the time of political and social crisis in Athens, Aristophanes was an eloquent yet bawdy challenger to the demagogue and the sophist. The Achanians is a plea for peace set against the background of the long war with Sparta.

The twelfth-century French poet Chrétien de Troyes is a major figure in European literature. His courtly romances fathered the Arthurian tradition and influenced countless other poets in England as well as on the continent. Yet because of the difficulty of capturing his swift-moving style in translation, English-speaking audiences are largely unfamiliar with the pleasures of reading his poems. Now, for the first time, an experienced translator of medieval verse who is himself a poet provides a translation of Chrétien’s major poem, Yvain, in verse that fully and satisfyingly captures the movement, the sense, and the spirit of the Old French original. Yvain is a courtly romance with a moral tenor; it is ironic and sometimes bawdy; the poetry is crisp and vivid. In addition, the psychological and the socio-historical perceptions of the poem are of profound literary and historical importance, for it evokes the emotions and the values of a flourishing, vibrant medieval past.

Artificial Intelligence: A Modern Approach offers the most comprehensive, up-to-date introduction to the theory and practice of artificial intelligence. Number one in its field, this textbook is ideal for one or two-semester, undergraduate or graduate-level courses in Artificial Intelligence.

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In this analysis of one major philosopher by another, Gilles Deleuze identifies three pivotal concepts - duration, memory, and lan vital - that are found throughout Bergson's writings and shows the relevance of Bergson's work to contemporary philosophical debates. He interprets and integrates these themes into a single philosophical program, arguing that Bergson's philosophical intentions are methodological. They are more than a polemic against the limitations of science and common sense, particularly in Bergson's elaboration of the explanatory powers of the notion of duration - thinking in terms of time rather than space.