I'm not easily inhibited by the fact that I don't know something about a subject. It doesn't stop me from dabbling in it.

When I was in high school, I became interested in cytochemistry: chemical analysis under the microscope, and trying to understand the composition of cells.

As soon as you go into any biological process in any real detail, you discover it's open-ended in terms of what needs to be found out about it.

The single biggest threat to man's continued dominance on the planet is the virus.

If you wanted to dissect the structure of living cells, genetic analysis was an extremely powerful method, so my interest turned to that.

I hope I've lived a life of science whose style will encourage younger people.

Everybody has to learn for the first time.