FRANCIS COLLINS
Director, National Human Genome Research Institute
I see no conflict in what the Bible tells me about God and what science tells me about nature. Like St. Augustine in A.D. 400, I do not find the wording of Genesis 1 and 2 to suggest a scientific textbook but a powerful and poetic description of God's intentions in creating the universe. The mechanism of creation is left unspecified. If God, who is all powerful and who is not limited by space and time, chose to use the mechanism of evolution to create you and me, who are we to say that wasn't an absolutely elegant plan? And if God has now given us the intelligence and the opportunity to discover his methods, that is something to celebrate.
I lead the Human Genome Project, which has now revealed all of the 3 billion letters of our own DNA instruction book. I am also a Christian. For me scientific discovery is also an occasion of worship.
Nearly all working biologists accept that the principles of variation and natural selection explain how multiple species evolved from a common ancestor over very long periods of time. I find no compelling examples that this process is insufficient to explain the rich variety of life forms present on this planet. While no one could claim yet to have ferreted out every detail of how evolution works, I do not see any significant "gaps" in the progressive development of life's complex structures that would require divine intervention. In any case, efforts to insert God into the gaps of contemporary human understanding of nature have not fared well in the past, and we should be careful not to do that now.
Science's tools will never prove or disprove God's existence. For me the fundamental answers about the meaning of life come not from science but from a consideration of the origins of our uniquely human sense of right and wrong, and from the historical record of Christ's life on Earth.
STEVEN PINKER
Psychology professor, Harvard University
It's natural to think that living things must be the handiwork of a designer. But it was also natural to think that the sun went around the earth. Overcoming naive impressions to figure out how things really work is one of humanity's highest callings.
Our own bodies are riddled with quirks that no competent engineer would have planned but that disclose a history of trial-and-error tinkering: a retina installed backward, a seminal duct that hooks over the ureter like a garden hose snagged on a tree, goose bumps that uselessly try to warm us by fluffing up long-gone fur.
The moral design of nature is as bungled as its engineering design. What twisted sadist would have invented a parasite that blinds millions of people or a gene that covers babies with excruciating blisters? To adapt a Yiddish expression about God: If an intelligent designer lived on Earth, people would break his windows.
The theory of natural selection explains life as we find it, with all its quirks and tragedies. We can prove mathematically that it is capable of producing adaptive life forms and track it in computer simulations, lab experiments and real ecosystems. It doesn't pretend to solve one mystery (the origin of complex life) by slipping in another (the origin of a complex designer).