An inventor fails 999 times, and if he succeeds once, he's in. He treats his failures simply as practice shots.
Failures are finger posts on the road to achievement.
It's amazing what ordinary people can do if they set out without preconceived notions. Believe and act as if it were impossible to fail. Keep on going, and the chances are that you will stumble on something, perhaps when you are least expecting it. I never heard of anyone ever stumbling on something sitting down. My interest is in the future because I am going to spend the rest of my life there.