What was Isaac Newton like? Secretive, vindictive, withdrawn, obsessive, and, oh, yes, brilliant. His imagination was so large that, just "by thinking on it," he invented calculus and figured out the scientific explanation of gravity.Yet Newton was so small-minded that he set out to destroy other scientists who dared question his findings. Here is a compelling portrait of Newton, contradictions and all, that places him against the backdrop of 17th-century England, a time of plague, the Great Fire of London, and two revolutions.