"My first attempts to transmit typhus to laboratory animals, including the smaller species of monkeys, had failed, as had those of my predecessors, for reasons which I can easily supply today"

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All the evidence of history suggests that man is indeed a rational animal, but with a near infinite capacity for folly. . . . He draws blueprints for Utopia, but never quite gets it built. In the end he plugs away obstinately with the only building material really ever at hand--his own part comic, part tragic, part cussed, but part glorious nature.

— Robert McNamara