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The bottom line for mathematicians is that the architecture has to be right. In all the mathematics that I did, the essential point was to find the right architecture. It's like building a bridge. Once the main lines of the structure are right, then the details miraculously fit. The problem is the overall design.
"Freeman Dyson: Mathematician, Physicist, and Writer". Interview with Donald J. Albers, The College Mathematics Journal, vol 25, no. 1, January 1994.
The David Eugene Smith Collection
When David Eugene Smith began giving his collection to the Columbia University Libraries in 1931, it included 12,000 printed books on the history of mathematics, ranging from the 15th through the 20th century. It also included 35 boxes of historical documents relating to mathematics; 140 boxes of his own professional papers; 350 volumes of western European manuscripts dating from the 15th to the early 20th century; 670 volumes of Oriental (primarily Arabic and Persian) manuscripts dating from the 8th to the early 20th century; 88 volumes of Chinese manuscripts; 363 volumes of Japanese manuscripts; 3,000 prints and portraits of mathematicians; and some 300 mathematical instruments and related objects.