In an American publication entitled ‘The Hundred,’ the author Dr Michael Hart, places Prophet Muhammad in the number one position of the most successful people in history, writing: “He was the only man in history, who was supremely successful on both the religious and secular levels.” (Dr Michael Hart, The Hundred, New York, 1978) Maulana Wahiduddin Khan explains that the secret of this outstanding success achieved by the Prophet of Islam was in one word: peace. The Quran states, “Reconciliation is the best.” (4:128) In controversial matters, a peaceful course of action is far more effective than having recourse to violence. The Prophet of Islam was the greatest pacifist in history. He exploited peace as an unconquerable force. A study of the life of the Prophet of Islam tells us that the Prophet discovered peace both as a complete ideology and as a methodology, which was the most effective strategy in all matters. The mission of the Prophet of Islam was utterly peaceful, that of spiritual purification of individuals. The Quran calls it the purification of the soul (2:129), developing a positive personality. Such a mind re-engineering can only be achieved through counselling and persuasion and awakening man’s ability to think. The means of achieving it is not a political revolution but rather an intellectual revolution. It can only take place in an atmosphere of peace. Prophet Muhammad was a Prophet of Peace to the fullest extent. All the teachings of Islam are entirely based directly or indirectly on the concept of peace.