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A short account of the history of mathematics

W. W. Rouse Ball1893

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2017-03-04

Stay in Bed

'On account of his [Descartes] delicate health he was permitted to lie in bed till late in the mornings ; this was a custom which he always followed, and when he visited Pascal in 1647 he told him that the only way to do good work in mathematics and to preserve his health was never to allow anyone to make him get up in the morning before he felt inclined to do so' - A short account of the history of mathematics