A PARADOX of American higher education is this: The expectations of leading universities do much to define what secondary schools teach, and much to establish a template for what it means to be an educated man or woman. College campuses are seen as the source for the newest thinking and for the generation of new ideas, as society’s cutting edge.

And the world is changing very rapidly. Think social networking, gay marriage, stem cells or the rise of China. Most companies look nothing like they did 50 years ago. Think General Motors, AT&T or Goldman Sachs.

Read the full essay, and the discussion that followed, here.