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.
Louis Leon Thurstone

Born: May 29, 1887
Died: September 30, 1955 (aged 68)
Bio: Louis Leon Thurstone was a U.S. pioneer in the fields of psychometrics and psychophysics. He conceived the approach to measurement known as the law of comparative judgment, and is well known for his contributions to factor analysis.
Known for:
- The nature of intelligence (1924)
- Primary Mental Abilities (1938)