failure is the key of success
A small boy - the fifth amongst seven siblings of a poor father, was selling newspapers in a small village to earn his living. He was not exceptionally smart at school but was fascinated by religion and rockets. The first rocket he built crashed. A missile that he built crashed multiple times and he was made a butt of ridicule. He is the person to have scripted the Space Odyssey of India single-handedly.
-He is Dr. APJ Abdul Kalam.