Yes, education will always be considered a good investment. In fact, the best investment has ever been us in people. Once they learned how to do things properly, they will pass on that learning to the others for free. It's about exchange of ideas and work experience which is more fruitful and extremely profitable on long terms.
The Great Depression happened in the 1920's and 1930's due to many economic disasters such as the Market Crash in 1929 and bad mistakes by the President (Hoover)
