Mathematicians Of The Day

1st December

On this day in 1729,  the correspondence between Leonard Euler and Christian Goldbach began. For over 25 years they exchanged letters, 196 of which survive.

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Quotation of the day

From G H Hardy
No mathematician should ever allow him to forget that mathematics, more than any other art or science, is a young man's game. ... Galois died at twenty-one, Abel at twenty-seven, Ramanujan at thirty-three, Riemann at forty. There have been men who have done great work later; ... [but] I do not know of a single instance of a major mathematical advance initiated by a man past fifty. ... A mathematician may still be competent enough at sixty, but it is useless to expect him to have original ideas.
A Mathematician's Apology (London 1941).