Joseph Levine is a philosophy professor at the University of Massachusetts, Amherst. His essay “From Yeshiva Bochur to Secular Humanist” is included in Philosophers Without Gods: Meditations on Atheism and the Secular Life (2007).

Greg Epstein serves as the humanist chaplain at Harvard University and is the author of Good Without God: What a Billion Nonreligious People Do Believe (2009). He holds master’s degrees in Judaic studies and theological studies and has been ordained as a humanist rabbi. The Humanist Chaplaincy at Harvard is “dedicated to building, educating, and nurturing a diverse community of […]

Catherine Caldwell-Harris is an associate professor of psychology at Boston University. She conducted a small study in 2008 comparing the spiritual beliefs of atheists, Christians and Buddhists; it included questions about meaning and purpose in life, as well. She also presented a paper, titled “The puzzle of nonbelief,” at the 2009 annual meeting of the Society for the […]

Louise M. Antony is a philosophy professor at the University of Massachusetts, Amherst. She has written various essays about atheism and is editor of the book Philosophers Without Gods: Meditations on Atheism and the Secular Life (2007), to which she also contributed one of the chapters, titled “For the Love of Reason.” She once debated Christian apologist/philosopher William […]

Daniel M. Farrell is a philosophy professor at Ohio State University in Columbus. In his essay “Life Without God: Some Personal Costs” (included in Philosophers Without Gods: Meditations on Atheism and the Secular Life), he tells about losing his faith while he was a seminarian, and how coming to terms with that affected other aspects of his […]

Dan Barker is a former evangelical preacher turned atheist. He and his wife, Annie Laurie Gaylor, are co-presidents of the Freedom From Religion Foundation, based in Madison, Wis. Barker’s books include Losing Faith in Faith: From Preacher to Atheist and Godless: How an Evangelical Preacher Became One of America’s Leading Atheists (2008).

Dennis Culhane is a professor of social welfare policy at the University of Pennsylvania where he studies homelessness and housing policy.

Ronald Inglehart is a political science professor at the University of Michigan in Ann Arbor and a research professor at its Center for Political Studies. He is particularly interested in the effects of changing belief systems on societies socially and politically. His books include (as co-author) Sacred and Secular: Religion and Politics Worldwide, which concluded that industrial […]

Dean Hamer is a geneticist and director of the Gene Structure and Regulation Unit at the National Cancer Institute in Bethesda, Md. He is the author of The God Gene: How Faith Is Hardwired Into Our Genes. His hypothesis, criticized by some other scientists, is that some people inherit a gene that predisposes them toward faith in […]