I would not say that Harvard possesses any sort of absolute dominance. And I personally do not take the rankings of schools all that seriously. However, I think that Harvard's global visibility increased significantly in the 1930s and 1940s and that the new commitment to excellence at Harvard spread to other institutions.

Harvard introduced the now famous ad hoc system whereby a group of experts in the field of the faculty member to be promoted are consulted concerning the stature of that scholar. This move made the opinion within the field, rather than the clubby relationship within the department, the determining factor in the promotion of professors.

If we want to identify the great success of American research universities, and that success goes far beyond Harvard, we have to come back to the question of governance. Excellence requires a firewall between trusteeship, or government ministries, and the academic decision-making process. This American concept of shared governance wherein the faculty are engaged in running the university as part of a collaboration with the other stakeholders.

It is equally unreasonable to run a university as a "participatory democracy," the approach to governance that once existed in Europe. That approach in European institutions of higher learning was appealing to professors because it was democratic. But those institutions also suffered because they lacked an executive decision-making process; making changes became virtually impossible.

The strong point of American research universities is the manner in which trustees, presidents and other senior executives retain a considerable amount of decision-making authority while at the same time maintaining a culture of open exchange and participatory debate.

The question of how much English should be used in international research universities is one with which I am extremely familiar. I would even say I am deeply puzzled by this trend. I am not certain what the correct answer should be.

That said, there are a few clear factors that determine the potential of a university to reach the highest levels of excellence. In the case of Harvard University, it was true that by the time of its tercentenary (300th anniversary of its founding) in 1936, Harvard had already achieved a reputation as a world-class institution. Harvard did not have the stature that it does today.