Kwame Anthony Appiah is the author of “The Ethics of Identity,” “Thinking It Through: An Introduction to Contemporary Philosophy,” “The Honor Code,” and the prize-winning “Cosmopolitanism.” Raised in Ghana and educated in England, he has taught philosophy on three continents and is currently Professor of Philosophy and Law at New York University. In the 1990’s he published three mystery novels—“Avenging Angel,” “Nobody Likes Letitia,” and “Another Death in Venice”—and he hopes to return to novel writing someday soon. Professor Appiah writes the “Ethicist” column in the New York Times Sunday Magazine. President Obama presented him with the National Humanities Medal in 2010; he gave the 2016 BBC Reith Lectures and he was the 2018 chair of the Man-Booker Prize jury. His 2018 book “The Lies that Bind: Rethinking Identity” was a Washington Post Notable Book of the Year. He maintains a website at www.appiah.net.