Rather entertaining. Colbert says that the really manly men, first of all, don't read books. Should he call Prof. Mansfield a "Dr." or a "Mr."? Well, "Dr." can also be a woman, unfortunately, Colbert says. :-) So they chose "Mr."
Participating in such a comedy is another piece of Prof. Mansfield's manliness. ;-)
Moreover, the very being a conservative at Harvard is much like being a Danish cartoonist in a mosque. :-) They continue about manliness of Bush, Thatcher, Summers, and others, and non-manliness of John Kerry, and whether Mansfield's wife is bringing more than 1/3 of the income and less than 2/3 of the housework in which case the book is b***s***, Colbert suggests.
Manliness. Read it, learn it, live it. :-)
See also Colbert with Brian Greene and Colbert On Notice Board.