Jim Rohn Quotes
What you don't know will hurt you.
Citations
Rohn, Jim. The Treasury of Quotes. Jim Rohn International, 1994, p. 30.
Related Quotes
Although most listeners had to spend some time parsing this famous quote, it actually was not a new notion. See Copernicus in linked quotes.
Emanuel James Rohn professionally known as Jim Rohn, was an American entrepreneur, author and motivational speaker.