How many failures before Edison gets fired today?

In many project management offices, the term “smart failure” is shunned. It’s not smart to be associated with any project or initiative with even a hint of failure. Thomas Edison begs to differ:

On progressive elaboration, iterative development, and lessons learnt:
• Results! Why, I have gotten a lot of results. I know several thousand things that won’t work.
• Never get discouraged if you fail. Learn from it. Keep trying.
• Our greatest weakness lies in giving up. The most certain way to succeed is always to try just one more time.
• Nearly every [person] who develops an idea works it up to the point where it looks impossible, and then he gets discouraged. That’s not the place to become discouraged.
• When I have fully decided that a result is worth getting I go ahead of it and make trial after trial until it comes.