His voluminous notebooks, the great storehouse of his theories and discoveries, are presented here in 1566 extracts that reveal the full range of Leonardo's versatile interest: all the important writings on painting, sculpture, architecture, anatomy, astronomy, geography, topography, and other fields are included, in both Italian and English, with 186 plates of manuscript pages and many other drawings reproduced in facsimile size.The first volume, which contains all of Leonardo's writings on aspects of painting, includes discussions of such basic scientific areas as the structure of the eye and vision, perspective, the science of light and shade, the perspective of disappearance, theory of color, perspective of color, proportions and movements of the human figure, botany for painters, and the elements of landscape painting. A section on the practice of painting includes moral precepts for painters and writings on composition, materials, and the philosophy of art. The second volume contains writings on sculpture, architecture (plans for towns, streets, and canals, churches, palaces, castles, and villas, theoretical writings on arches, domes, fissures, etc.), zoology, physiology (including his amazingly accurate theories of blood circulation), medicine, astronomy, geography (including has famous writings and drawings on the movement of water), topography (observations in Italy, France, and other areas), naval warfare, swimming, theory of flying machines, mining, music, and other topics.A selection of philosophical maxims, morals, polemics, fables, jests, studies in the lives and habits of animals, tales, and prophecies display Leonardo's abilities as a writer and scholar. The second volume also contains some letters, personal records, inventories, and accounts, and concludes with Leonardo's will. The drawings include sketches and studies for some of Leonardo's greatest works of art — The Last Supper, the lost Battle of Anghiari, The Virgin of the Rocks, and the destroyed Sforza monument.

    Structures and behavioral patterns that evolved in the service of discrete functions sometimes allow for unforeseen new developments as a side effect. In retrospect, they have proven to be pre-adaptations, and serve as raw material for natural selection to work upon. Love and Hate was intended to complement Konrad Lorenz's book, On Aggression, by pointing out our motivations to provide nurturing, and thus to counteract and correct the widespread but one-sided opinion that biologists always present nature as bloody in tooth and claw and intra-specific aggression as the prime mover of evolution. This simplistic image is, nonetheless, still with us, all the more regrettably because it hampers discussion across scholarly disciplines. Eibl-Eibesfeldt argues that leaders in individualized groups are chosen for their pro-social abilities. Those who comfort group members in distress, who are able to intervene in quarrels and to protect group members who are attacked, those who share, those who, in brief, show abilities to nurture, are chosen by the others as leaders, rather than those who use their abilities in competitive ways. Of course, group leaders may need, beyond their pro-social competence, to be gifted as orators, war leaders, or healers. Issues of love and hate are social in origin and hence social in consequence. Life has emerged on this planet in a succession of new forms, from the simplest algae to man-man the one being who reflects upon this creation, who seeks to fashion it himself and who, in the process, may end by destroying it. It would indeed be grotesque if the question of the meaning of life were to be solved in this way. In language that is clear and accessible throughout, arguing forcefully for the innate and "preprogrammed" dispositions of behavior in higher vertebrates, including humans, Eibl-Eibesfeldt steers a middle course in discussing the development of cultural and ethical norms while insisting on their matrix of biological origins.

    Focusing on heredity, which Jacob considers the fundamental feature of living things, he shows how, since the sixteenth century, the scientific understanding of inherited traits has moved not in a linear, progressive way, from error to truth, but instead through a series of frameworks. He reveals how these successive interpretive approaches--focusing on visible structures, internal structures (especially cells), evolution, genes, and DNA and other molecules--each have their own power but also limitations. Fundamentally challenging how the history of biology is told, much as Thomas Kuhn's Structure of Scientific Revolutions did for the history of science as a whole, The Logic of Life has greatly influenced the way scientists and historians view the past, present, and future of biology.