Gottfried Wilhelm Leibniz
Personal life

Leibniz never married. He proposed to an unknown woman at age 50, but changed his mind when she took too long to decide. He complained on occasion about money, but the fair sum he left to his sole heir, his sister's stepson, proved that the Brunswicks had paid him fairly well. In his diplomatic endeavors, he at times verged on the unscrupulous, as was often the case with professional diplomats of his day. On several occasions, Leibniz backdated and altered personal manuscripts, actions which put him in a bad light during the calculus controversy.

He was charming, well-mannered, and not without humor and imagination. He had many friends and admirers all over Europe. He was identified as a Protestant and a philosophical theist. Leibniz remained committed to Trinitarian Christianity throughout his life.
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