Providence College, a Roman Catholic school in Rhode Island, has canceled a lecture on gay marriage by Dr. John Corvino, also known as the “Gay Moralist.”

Corvino, the author of What's Wrong with Homosexuality?, is a philosophy professor at Wayne State University in Detroit, Michigan and is known for taking on religious opponents of marriage equality.

He co-authored Debating Same-Sex Marriage with Maggie Gallagher, a former president and chairman of the board of the National Organization for Marriage (NOM), the nation's most vociferous opponent of same-sex marriage.

Corvino told The New York Times that he enjoys speaking to a conservative audience.

“I want to convince them that same-sex marriage is not only possible, but is also a good thing, for the couple and good for society at large,” Corvino said. “But I also want to engage in a deeper dialogue about issues that we agree are important.”

He said that he had given lectures and debated at many Catholic colleges. A 2008 talk at Aquinas College in Grand Rapids, Michigan was also canceled.

Hugh F. Lena, the provost and senior vice president of Providence College, told the paper that he uninvited Corvino because the event largely focused on only one side of a controversial issue.

(Related: John Corvino: There's more to gay sex than anal sex.)