Get over it

"There are six billion people in the world," said Francisco J. Ayala, an evolutionary biologist at the University of California, Irvine, and a former Roman Catholic priest. "If we think that we are going to persuade them to live a rational life based on scientific knowledge, we are not only dreaming — it is like believing in the fairy godmother."

"People need to find meaning and purpose in life," he said. "I don't think we want to take that away from them."

Lawrence M. Krauss, a physicist at Case Western Reserve University known for his staunch opposition to teaching creationism, found himself in the unfamiliar role of playing the moderate. "I think we need to respect people's philosophical notions unless those notions are wrong," he said.

"The Earth isn't 6,000 years old," he said. "The Kennewick man was not a Umatilla Indian." But whether there really is some kind of supernatural being — Dr. Krauss said he was a nonbeliever — is a question unanswerable by theology, philosophy or even science. "Science does not make it impossible to believe in God," Dr. Krauss insisted. "We should recognize that fact and live with it and stop being so pompous about it."