A scientist developed a formula to perfectly reproduce himself to avoid death. When the Angel of Death came for him, he created 12 copies so the angel wouldn't know which was the original. However, the angel tricked the scientist by claiming to see a flaw, causing the scientist's ego to make him reveal himself. The angel took the original scientist, showing that allowing ego to grow can undermine success and lead to downfall. The moral is not to let ego kill you, but to kill your ego instead.