"After years of training [as astronaut], you have great confidence in the technology. When you get in your car, you probably feel safe too, even though thousands of people die in car crashes every year."

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So much goes into doing a transplant operation. All the way from preparing the patient, to procuring the donor. It's like being an astronaut. The astronaut gets all the credit, he gets the trip to the moon, but he had nothing to do with the creation of the rocket, or navigating the ship. He's the privileged one who gets to drive to the moon. I feel that way in some of these more difficult operations, like the heart transplant.

— Denton Cooley