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As artists become accomplished in their craft, the knowledge and depth of understanding of the tools they use to create their art becomes accomplished as well. A painter knows he has several types of brushes to choose from. His experience   taught him that certain brushes can produce specific strokes, 

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I'd go with you on that point.

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We should  in mind that the budget has not yet been approved.

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Nicolaus Copernicus (1473 - 1543) was born in Poland. He came from a wealthy family, and thus was  to attend the University of Cracow, where he studied Maths and astronomy.