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.
Bio: Walter A. Zettl was a German dressage rider and Olympic-level dressage horse trainer. He was born in 1929 in Alt-Rohlau, Bohemia, which is now Stará Role in the Karlovy Vary region of the Czech Republic.