It is very easy to sing a paean to failure when one is a success story. I did fail an exam and was glad when I managed to pass in the second attempt. Having passed, can't I count myself a success and praise failure? Well, the news of my failure got the following reactions:

Dr. A: "Impossible!"

Dr. B.: "Amazing!"

Dr. C: "A son-of-a-fool would have corrected your answers."

Those were flattering responses and I was indeed flattered. But the marksheet clearly indicated that I was a failure. I had to do something about it. I rewrote the exam as well as I did the first time and managed to get 'just pass'.  I am happy that I passed. But I am also happy that I failed the first time. Else I wouldn't have got those flattering responses.