According to the New York Times obit "William F. Buckley Jr. Is Dead at 82 ":
As a senior, he was given the honor of delivering the speech for Yale’s Alumni Day celebration, but was replaced after the university’s administration objected to his strong attacks on the university. He responded by writing his critique in the book that brought him to national attention, in part because he gave the publisher, Regnery, $10,000 to advertise it.
Published in 1951, “God and Man at Yale: The Superstitions of ‘Academic Freedom,’” charged the powers at Yale with having an atheistic and collectivist bent and called for the firing of faculty members who advocated values not in accord with those that the institution should be upholding — which was to say, his own.
But for those right wing talking points book writers who think that Regnery is their key to wealth and fame, we should offer a warning that Mr. Buckley had a rich father that helped him start the National Review. All things didn't just follow from a deal with the publisher. Even Daddy's big bucks didn't stop Buckley from needing to use the crutch of fighting civil rights for minorities to get a following.
Read rest at source.