„I beg to introduce myself to you as a clerk in the Accounts Department of the Port Trust Office at Madras... I have no University education but I have undergone the ordinary school course. After leaving school I have been employing the spare time at my disposal to work at Mathematics. I have not trodden through the conventional regular course which is followed in a University course, but I am striking out a new path for myself. I have made a special investigation of divergent series in general and the results I get are termed by the local mathematicians as "startling".... Very recently I came across a tract published by you styled Orders of Infinity in page 36 of which I find a statement that no definite expression has been as yet found for the number of prime numbers less than any given number. I have found an expression which very nearly approximates to the real result, the error being negligible. I would request that you go through the enclosed papers. Being poor, if you are convinced that there is anything of value I would like to have my theorems published. I have not given the actual investigations nor the expressons that I get but I have indicated the lines on which I proceed. Being inexperienced I would very highly value any advice you give me. Requesting to be excused for the trouble I give you. I remain, Dear Sir, Yours truly...“

— Srinivasa Ramanujan, Letter to G. H. Hardy, (16 January 1913), published in Ramanujan: Letters and Commentary American Mathematical Society (1995) History of Mathematics, Vol. 9
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Srinivasa Ramanujan
matemático indiano 1887 - 1920

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„My dear Chantrey, - I intended long before this (but you will say, Fudge) to have written: but even now very little information have I to give you in matters of Art, for I have confined myself to the painting department at Corso; and having finished one, am about the second, and getting on with Lord E.'s, which I began the very first touch at Rome; but as the folk here talked that I would show them not, I finished a small three feet four [painting] to stop their gabbling..“

— J.M.W. Turner British Romantic landscape painter, water-colourist, and printmaker 1775 - 1851
Quote in Turner's letter from Rome, 6 Nov. 1828, to his friend Francis Chantrey; as cited in The Life of J. M. W. Turner R.A. , Walter Thornbury - A new Edition, Revised https://ia601807.us.archive.org/24/items/gri_33125004491185/gri_33125004491185.pdf; London Chatto & Windus, 1897, p. 10

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„Weissenbruch to Vincent van Gogh:.. now that I have seen your work, I will take sides for you. They call me 'the sword without mercy', and I am - and I would not have said anything like that to Anton Mauve about you if I had not found any good in your sketches.“

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version in original Dutch: Weissenbruch tegen Vincent van Gogh: ..nu ik je werk gezien heb zal ik partij voor je trekken. Zij noemen mij ‘het zwaard zonder genade’, en dat ben ik ook, en ik zou zoo iets niet tegen Mauve over je gezegd hebben, als ik geen goeds gevonden had in je studies. p. 44, note 1

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