Researchers have, however, recently discovered notes of Leibniz' that discuss one of Newton's books on mathematics.
然而,研究人员最近发现莱布尼茨的笔记中讨论了牛顿的一本数学著作。
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Machiavelli, he notes, concluded that "one ought to be both feared and loved, but as it is difficult for the two to go together, it is much safer to be feared than loved."