The Reverend Gardner Calvin Taylor is senior pastor emeritus of the Concord Baptist Church of Christ in Brooklyn, N.Y. The “On Faith” panelist led the congregation from 1948 to 1990, as church membership grew by 9,000 and through a 1952 fire that necessitated a $1.7 million rebuilding effort. His role as pastor included oversight of the Concord Baptist Church Elementary School, Concord Nursing Home, Concord Clothing exchange, Concord Federal Credit Union, Concord Seniors Residence and Concord Baptist Christfund. Beyond Brooklyn, Taylor has taken the pulpit from London’s Westminster Hall to China to Copenhagen to Zambia. His publications include How Shall They Preach, The Scarlet Thread, Chariots Aflame and Wisdom. Among his awards and honorary degrees are doctorates from Oberlin College, Leland College, Wake Forest University and Howard University; a Star of Africa, conferred by Liberian President William Tubman; and the rank of Knight Commander, Order of African Redemption, conferred by President William Tolbert of Liberia. President Clinton awarded Taylor the Presidential Medal of Freedom in 2000. Born in Baton Rouge, La., he now resides in North Carolina.

“On Faith” panelist Sam Harris is the author of the best-selling books Letter to a Christian Nation (2006) and The End of Faith (2005), which won the 2005 PEN Award for Nonfiction and has been translated into many foreign languages. Harris is a graduate in philosophy from Stanford University, has studied both Eastern and Western religious traditions, and is now completing a doctorate in neuroscience. He makes regular appearances on television and radio to discuss the danger that religion now poses to modern societies. His essays have appeared in Newsweek, The Los Angeles Times, The Times of London and The Boston Globe.

Rev. Susan Brooks Thistlethwaite is president of Chicago Theological Seminary and senior fellow at the Center for American Progress. She has been a professor of theology at the seminary for 20 years and director of its graduate degree center for five years. Her area of expertise is contextual theologies of liberation, specializing in issues of violence and violation. An ordained minister of the United Church of Christ since 1974, the “On Faith” panelist is the author or editor of thirteen books and has been a translator for two translations of the Bible. Her works include Casting Stones: Prostitution and Liberation in Asia and the United States (1996) and The New Testament and Psalms: An Inclusive Translation (1995). Since the September 11, 2001 terrorist attacks, Thistlethwaite has been working diligently to promote peace, including a presentation at the U.S. Institute of Peace, which appears in one of their special reports. Most recently she edited and contributed to Adam, Eve and the Genome: Theology in Dialogue with the Human Genome Project (2003).

Susan Jacoby is the author of "The Age of American Unreason," to be published in February by Pantheon. She began her writing career as a reporter for The Washington Post, and has been a contributor to a wide range of periodicals and newspapers for more than 25 years on topics including law, religion, medicine, aging, women's rights, political dissent in the Soviet Union and Russian literature. Jacoby has been the recipient of grants from the Guggenheim, Rockefeller and Ford Foundations, as well as the National Endowment for the Humanities. In 2001-2002, she was named a fellow at the Center for Scholars and Writers at the New York Public Library. Jacoby’s other books include Freethinkers: A History of American Secularism (2004); Wild Justice: The Evolution of Revenge, a Pulitzer Prize finalist in 1984, and Half-Jew: A Daughter's Search for Her Family's Buried Past. She is working on a book about the relationship between American anti-intellectualism and political polarization, to be published by Pantheon in 2008. Her photo is by Chris Ramir.