Theodore von Karman Quotes
I came to realize that exaggerated concern about what others are doing can be foolish. It can paralyze effort, and stifle a good idea. One finds that in the history of science, almost every problem has been worked out by someone else. This should not discourage anyone from pursuing his own path.
Von Kármán, Theodore, and Lee Edson. The Wind and Beyond: Theodore von Kármán, Pioneer in Aviation and Pathfinder in Space. Little, Brown and Company, 1967.
Theodore von Kármán was a Hungarian-American mathematician, aerospace engineer, and physicist who was active primarily in the fields of aeronautics and astronautics. He was responsible for many key advances in aerodynamics, notably on supersonic and hypersonic airflow characterization. He is regarded as the outstanding aerodynamic theoretician of the 20th century.