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.
Clarence Irving Lewis

Born: April 12, 1883
Died: February 3, 1964 (aged 80)
Bio: Clarence Irving Lewis, usually cited as C. I. Lewis, was an American academic philosopher and the founder of conceptual pragmatism. First a noted logician, he later branched into epistemology, and during the last 20 years of his life, he wrote much on ethics.
Known for:
- An analysis of knowledge and valuation (1946)
- A survey of symbolic logic (1918)
- Symbolic logic (1900)







