is co-founder of the Insight Meditation Society and author of Faith: Trusting Your Own Deepest Experience.
is a rabbi in the Reform tradition of Judaism. His books include Jewish Spirituality: A Brief Introduction for Christians.
is the best-selling author of many books including Traveling Mercies: Some Thoughts on Faith.
is Assistant Professor of Islamic Studies at Colgate University and Co-Chair of the Study of Islam section at the American Academy of Religion.