Robert B. Talisse is a professor of philosophy and political science at Vanderbilt University in Nashville, Tenn. He is co-author of Reasonable Atheism (2011) and the author of Democracy and Moral Conflict (2009).

Tim Murphy is an associate professor of religious studies at the University of Alabama. He teaches a course on modern atheism.

Scott Aikin is senior lecturer in the philosophy department at Vanderbilt University in Nashville, Tenn. He is co-author of the book Reasonable Atheism and wrote an essay titled “The Problem of Worship” for the summer 2010 issue of Think.

Walter Sinnott-Armstrong is the Chauncey Stillman Professor in Practical Ethics in the philosophy department and the Kenan Institute for Ethics at Duke University in Durham, N.C. His essay “Overcoming Christianity” is included in Philosophers Without Gods: Meditations on Atheism and the Secular Life (2007). His books include Morality Without God? (2009) and (as co-author) God?: A Debate Between a Christian and […]

Jennifer Hancock is a former executive director of the Humanists of Florida Association. She writes a freelance column on humanism for the Bradenton Herald; her Aug. 21, 2010, column discusses how humanism helped her cope with tragedies in her life.

Martin L. Cowen III is the founder of Atlanta’s Fellowship of Reason, an organization whose members “believe each individual’s purpose and success in life are derived from, and ultimately determined by, the individual — not a supernatural authority.” He wrote in the group’s October 2007 newsletter that he does not want to be called an atheist, though, as […]

Rebecca Watson of Buffalo, N.Y., and London, is a well-known activist, writer, blogger and founder of the website Skepchick. She speaks frequently at atheist and other freethought gatherings on the subjects of feminism, science and young people in the movement, and she has a podcast called The Skeptic’s Guide to the Universe. There is a contact form available […]

Jennifer Michael Hecht teaches at the New School University in New York City. She is the author of Doubt: A History and The End of the Soul: Scientific Modernity, Atheism and Anthropology in France.

Margaret Downey is founder and president of The Freethought Society, based in Pocopson, Pa. She is also a secular celebrant, performing life-cycle ceremonies for nonbelievers.