Yogi Berra? Albert Einstein? Richard Feynman? Benjamin Brewster? Charles F. Kettering? Walter J. Savitch? Jan L. A. van de Snepscheut? Dave Jeske? Chuck Reid? Question for Quote Investigator: The following popular adage balances unsteadily between brilliance and absurdity: In theory, theory and practice are the same. In practice, they are not. This notion has been …