The book treats two approaches to decision theory: (1) the normative, purporting to determine how a 'perfectly rational' actor ought to choose among available alternatives; (2) the descriptive, based on observations of how people actually choose in real life and in laboratory experiments. The mathematical tools used in the normative approach range from elementary algebra to matrix and differential equations. Sections on different levels can be studied independently. Special emphasis is made on 'offshoots' of both theories to cognitive psychology, theoretical biology, and philosophy.

For twelve months beginning in January 2000, celebrated essayist and research physician Gerald Weissmann carefully documented the modern age of enlightenment, charting its scientific marvels and new plagues. Now, this illuminating diary takes us on a literary exploration of laboratories and beyond to see the impact on human life and culture of headliners such as RU 486, AIDS drugs, and other current developments, including the controversial use of stem cells. Whether calling on Ralph Waldo Emerson to explain Craig Venter's drive to unravel the genome or tracing the effect of Rachel Carson's legacy on the spread of malaria around the world, Weissmann's lively chronicle captures the greatest genetic revolution of all time.

Menaḥem Mendel Schneerson (1902-1994) was the seventh and seemingly last Rebbe of the Habad-Lubavitch dynasty. Marked by conflicting tendencies, Schneerson was a radical messianic visionary who promoted a conservative political agenda, a reclusive contemplative who built a hasidic sect into an international movement, and a man dedicated to the exposition of mysteries who nevertheless harbored many secrets. Schneerson astutely masked views that might be deemed heterodox by the canons of orthodoxy while engineering a fundamentalist ideology that could subvert traditional gender hierarchy, the halakhic distinction between permissible and forbidden, and the social-anthropological division between Jew and Gentile. While most literature on the Rebbe focuses on whether or not he identified with the role of Messiah, Elliot R. Wolfson, a leading scholar of Jewish mysticism and the phenomenology of religious experience, concentrates instead on Schneerson's apocalyptic sensibility and his promotion of a mystical consciousness that undermines all discrimination. For Schneerson, the ploy of secrecy is crucial to the dissemination of the messianic secret. To be enlightened messianically is to be delivered from all conceptual limitations, even the very notion of becoming emancipated from limitation. The ultimate liberation, or true and complete redemption, fuses the believer into an infinite essence beyond all duality, even the duality of being emancipated and not emancipated--an emancipation, in other words, that emancipates one from the bind of emancipation. At its deepest level, Schneerson's eschatological orientation discerned that a spiritual master, if he be true, must dispose of the mask of mastery. Situating Habad's thought within the evolution of kabbalistic mysticism, the history of Western philosophy, and Mahayana Buddhism, Wolfson articulates Schneerson's rich theology and profound philosophy, concentrating on the nature of apophatic embodiment, semiotic materiality, hypernomian transvaluation, nondifferentiated alterity, and atemporal temporality.

These companion volumes, long out of print, are now presented together for the first time so that the reader may better grasp their essential unity. In Ether, God and Devil, Wilhelm Reich describes the process of functional thinking and reveals how the inner logic of this objective thought technique led him to the discovery of cosmic orgone energy. In Cosmic Superimposition , Reich steps beyond the character structure of man to an understanding of how man is rooted in nature. The super-imposition of two orgone-energy systems which is demonstrable in the genital embrace is revealed as a common functioning principal that exists in all of nature. Concluding this work, Reich returns to the human sphere "to ponder about the greatest riddle of all: the ability of man to think, and by mere thinking to know what nature is and how it works."

This series of dialogues between the spiritual and the scientific is framed by Klein's deep knowledge of cell biology.

My 'discovery' of the Polish School of philosophy of medicine stemmed from my studies in the genesis of Ludwik Fleck's epistemology. These studies, and my interest in the scientific roots of Fleck's epistemology were a nearly 'natural' result of my own biography: like Fleck I had been trained, an had worked as an immunologist, and had later switched to studies in the social history of medicine and biology. Moreover, it so happened that Fleck's book, Genesis and Development of a Scientific Fact -the description of a science as it is, not as it should be -was the first epistemological study in which I found echos of my experience in the laboratory. My interest in Fleck was also highlightened by the fact that in his works, and, as I discovered later, in the works of his predecessors of the Polish School of philosophy of medicine, was formulated the problem that had stimulated my interest in the history of medicine and biology, and is still central to my present investigations: the relationships between biological knowledge and clinical practice. The writing of the book was made possible through to the help of many colleagues and friends. The unfailing support for my research, whatever its subject might be, from my colleagues from Unit 158 of INSERM and in particular from its head Patrice Pinell, has made my study of the Polish School possible.

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