“If greatness of purpose, smallness of means, and outstanding results are the three criteria of human genius, who could dare to compare any great man in modern history with Muhammad?” Alphonse de Lamartine
For evidence to these claims please see this publication and its links:
Also see my collection of knols about the Holy Prophet Muhammad:
The teaching company course by Prof. Mark Muesse of Harvard University titled
Confucius, Buddha, Jesus and Muhammadstarts with the description of this book,The 100: A Ranking Of The Most Influential Persons In History:
In 1978, an astrophysicist named Michael H. Hart published a book in which he ranked the 100 people who most influenced world history. Hart’s book, which was simply entitled The 100, argued that the five most influential persons who ever lived were the Prophet Muhammad, Sir Isaac Newton, Jesus of Nazareth, the Buddha, and Confucius, in that order. The book’s appearance caused quite a stir, especially among folks who thought their particular hero was not given a high enough rating on the list or failed to make the list at all. Much ofthe controversy surrounding the book was due to the failure of many people to understand the author’s intention. Hart was not trying to evaluate and rank the best persons who ever lived. He was merely making judgments about the influence of prominent individuals on human history. Certainly he had a point. While we might quibble about the order, any list of, say, a dozen persons who have most affected the course of history would surely include Muhammad, Jesus, the Buddha, and Confucius. While the influence of these four can hardly be doubted, what brings me to this study of Confucius, the Buddha, Jesus, and Muhammad is not simply an historian’s interest in their impact on humanity’s development, although that fact certainly justifies a comparative study. My fascination with this spiritual quartet derives from another interest, the same concern that led me to the study of religion and philosophy in the first place: the desire to know how to live life well. After nearly 30 years of studying the world’s religious and philosophical traditions, I am convinced that these four figures represent some of our finest teachers of the art of living. When I speak of the art of living and living life well, I mean living nobly and deliberately, with high-mindedness, virtue, and discipline. Among the many individuals I have studied, no one has impressed me more as exemplars of the noble life than Confucius, the Buddha, Jesus, and Muhammad. There are others whom I might rank with these four, but no one who excels them. By their lives, they have inspired me-and obviously countless others-with their dedication to living deeply and thoughtfully and with the courage they mustered in the face of adversity. 
The description of the course is:
Confucius, Buddha, Jesus, Muhammad—four extraordinary sages who influenced world civilization more deeply than any other human beings in history.
As just one measure of their importance, current rankings of the most influential people in history consistently put Confucius, the Buddha, Jesus, and Muhammad at or near the top of the list. Four centuries after the rise of the scientific worldview, their influence in human affairs continues to be fundamental, underscoring issues ranging from questions of ethics and justice to religious and political conflicts to other issues that dominate today’s headlines.
In the 21st century, much of humanity still looks to the lives, teachings, and actions of these four sages for guidance on how to live, for their conceptions of morality, and for understanding the most crucial human values.
Never merely historical figures, as models of human living they remain dynamically alive for countless millions of people around the world, exemplifying the moral and spiritual precepts our civilizations are built on. Taken together, their influence extends over most of the human population, from Asia to the Middle East and from Europe to the New World.
No understanding of human life, individual or collective, could be complete without factoring in the role and contribution of these history-shaping teachers.
Now, in Confucius, Buddha, Jesus, and Muhammad, award-winning Professor Mark W. Muesse of Rhodes College takes you deep into the life stories and legacies of these four iconic figures, revealing the core, original teachings, and thoughts of each, and shedding light on the historical processes that underlie their phenomenal, enduring impact.