Maria Mitchell: To read a book, to think it over, and to write out notes is a useful exercise; a book which will not repay some hard thought is not worth publishing.

To read a book, to think it over, and to write out notes is a useful exercise; a book which will not repay some hard thought is not worth publishing.


		Name: Maria Mitchell Type: Scientist Nationality: American Birth: August 1, 1818 Death: June 28, 1889

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