Authors:

If a man didn't make mistakes he'd own the world in a month.But if he didn't profit by his mistakes he wouldn't own a blessed thing.

Edwin Lefèvre (2004). “Reminiscences of a Stock Operator”, p.96, John Wiley & Sons
If a man didn't make mistakes he'd own the world in a month.But if he didn't profit by his mistakes he wouldn't own a blessed thing.