Quote of the day
What we observe is not nature itself but nature exposed to our method of questioning. Our scientific work in physics consists in asking questions about nature in the language that we possess and trying to get an answer from experiment by the means that are at our disposal.
Raymond Louis Wilder

Born: November 3, 1896
Died: July 7, 1982 (aged 85)
Bio: Raymond Louis Wilder was an American mathematician, who specialized in topology and gradually acquired philosophical and anthropological interests.
Known for:
- Topology of manifolds (1949)
- Evolution of mathematical concepts (1968)
- Mathematics as a cultural system (1981)