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Author: WikiMatrix
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English[en]
His works, illustrated to his orders, were extremely popular, and he was the first scientist to be able to support himself through the sale of his books.
Korean[ko]
목차에서 보여준 것처럼 그의 연구는 매우 대중적이었고, 그는 자신의 책을 판매함으로써 먹고 살 수 있는 첫 번째 과학자였다.