Those of you in or near New York City tonight will want to hear Robert P. George and Ryan T. Anderson (both members of our advisory council) and Sherif Girgis explain what marriage is and analyze the state’s recent decision to approve homosexual “marriages.” The talk is being given at the Youth Center Gymnasium at 268 Mulberry Street (between Houston & Prince Street) from 7:00 to 9:00.

Here are four sets of exchanges on the subject, beginning with their extensive analysis, What is Marriage? , published in the Winter 2011 issue of the Harvard Journal of Law and Public Policy. NYU Law Professor Kenji Yoshino replied in The Best Argument Against Gay Marriage: And Why it Fails and they replied to him not, as you’d expect, giving any ground, in The Argument Against Gay Marriage: And Why it Doesn’t Fail .

Yoshino wrote against them again with Lose the Baseball Analogy , and they responded with Marriage: No Avoiding the Central Question .

Northwestern Law and Political Science Professor Andrew Koppelman also responded to them with an article titled What Marriage Isn’t . They answered his arguments in Marriage: Merely a Social Construct? .

Koppelman continued the discussion with That Elusive Timeless Essence of Marriage . They answered with ” Does Marriage, Or Anything, Have Essential Properties? .

Finally, Family Scholars blogger Barry Deutsch asked ” What Is Bodily Union? and the three answered the question with Marriage: Real Bodily Union .