"Protein engineering is a technology of molecular machines - of molecular machines that are part of replicators - and so it comes from an area that already raises some of the issues that nanotechnology will raise."

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My latter schooldays and my university days were during the war, when science - physics, in particular - was a very important and glamorous subject. A lot of us felt that if we couldn't get into science, we might try engineering or medicine.

— John Henry Carver