There are, however, many challenges to Asian universities. First, academic freedom, in all senses, is much more critical to the success of a university than how much money is spent on infrastructure or on hiring big names. Faculty need to have the space to pursue the research that they are passionate about and the also need to have the freedom to express their opinions in the university, and in the society as a whole.

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.

Equally important for the promotion of excellence in the university is an emphasis on shared governance. The faculty needs to be involved directly in the process of running the university and in the setting of priorities.

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.

Public image is extremely important in American society and I observed personally that the Presidency of John F. Kennedy did much in the public mind for Harvard. Harvard was an excellent school before Kennedy, but Kennedy embodied a new vision for the United States: a leader who caught the world's imagination and that reflected on his alma mater, Harvard.

There is another innovation at Harvard which I think made a tremendous difference and that is the decision to try to recruit the very best person in the field for an available faculty position. In the period after World War II Harvard literally engaged in world-wide searches for the very best and created a culture in which it was simply unacceptable to hire friends and associates, to make decisions based on personal affections or inclinations.

The rank of a university is similar to an index number say like the NASDAQ index. I don't understand how you can take an institution like Harvard, Stanford, or Michigan, and represent it by an index number. The concept makes no sense.