Finally there are simple ideas of which no definition can be given; there are also axioms or postulates, or in a word primary principles, which cannot be proved and have no need of proof.
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Nationality: German Type: Philosopher Born: July 1, 1646 Death: November 14, 1716 |
“Every year, nearly two-thirds of the approximately 200,000 patients in need of a bone marrow transplant will not find a marrow donor that matches within their families.”