Strongest human being
One day when the Prophet of Islam (PBUH) was passing by a crowd gathered around a man who was strong and was picking heavy stones from the ground. Everyone was surprised by his strength and the Prophet (PBUH) asked why the crowd has gathered round him; people described that man's strength; then the Prophet (PBUH) said: Do you want me to tell you who is stronger than this man? Then the Prophet (PBUH) replied: The stronger than this man is the person who when others insult him, he tolerates, and has total control over his anger and sense of revenge. In this way he will be able to be victorious against his inner Satan and the insulting Satan .
 Warram Collection, page 10