David Gries Professions : Computer Scientist Born : April 26, 1939 Browse All Authors Top 3 quotes by David Gries A closed mouth gathers no foot. David Gries tired block thinking Never put off until run time what you can do at compile time. David Gries can-do running A formal parsing algorithm should not always be used. David Gries algorithms used humorous Similar Authors Bill Joy computer-scientist Butler Lampson computer-scientist Brian Reid computer-scientist Brian Kernighan computer-scientist Andrew S. Tanenbaum computer-scientist Andy Hertzfeld computer-scientist All Authors