Diversity of thought - Always welcome

This piece in Bloomberg is not about international economic law directly but the logic applies to it too. 

It talks about the need for diversity in thought in Universities, in the context of the US.

Nonetheless, the current numbers make two points unmistakably clear. 

First, those who teach in departments lacking ideological diversity have an obligation to offer competing views and to present them fairly and with respect. A political philosopher who leans left should be willing and able to ask students to think about the force of the argument for free markets, even if they produce a lot of inequality. 

Second, those who run departments lacking ideological diversity have an obligation to find people who will represent competing views — visiting speakers, visiting professors and new hires. Faculties need not be expected to mirror their societies, but students and teachers ought not live in information cocoons. 

John Stuart Mill put it well: “It is hardly possible to overrate the value ... of placing human beings in contact with persons dissimilar to themselves, and with modes of thought and action unlike those with which they are familiar. Such communication has always been, and is peculiarly in the present age, one of the primary sources of progress.” 

I was trying to draw a parallel with diversity of thought on international trade law and policy, on approaches of free markets and protectionism and of staggered liberalisation and full-fledged opening up. A diversity of opinions and debate is always good!