It is not enough to have a good mind; the main thing is to use it well

Rene Descartes(Mar 31, 1596 to Feb 11, 1650)

French philosopher, mathematician, and scientist. A native of the Kingdom of France, he spent about 20 years of his life in the Dutch Republic after serving for a while in the Dutch States Army of Maurice of Nassau, Prince of Orange and the Stadtholder of the United Provinces.

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