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: Charles Timothy "Chuck" Hagel is an American politician who was the 24th United States Secretary of Defense for two years in the Obama administration. He previously served as United States Senator from Nebraska from 1997 to 2009.