As someone who's had the privilege of leading the human genome project, I've had the opportunity to study our own DNA instruction book at a level of … - Francis Collins

Reason alone cannot prove the existence of God. Faith is reason plus revelation, and the revelation part requires one to think with the spirit as well as with the mind. You have to hear the music, not just read the notes on the page.

I would not expect religion to be the right tool for sequencing the human genome and by the same token would not expect science to be the means to approaching the supernatural. But on the really interesting larger questions, such as ‘Why are we here?’ or ‘Why do human beings long for spirituality?,’ I find science unsatisfactory. Many superstitions have come into existence and then faded away. Faith has not, which suggests it has reality.

Yes, evolution by descent from a common ancestor is clearly true. If there was any lingering doubt about the evidence from the fossil record, the study of DNA provides the strongest possible proof of our relatedness to all other living things.