If it takes you 20 or 25 years to establish yourself in one field, you really ought to be careful not to stray too far.

I wish I had a talent for dropping things as well as taking on new ones. It gets to be quite a clutter after a while.

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

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

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

I certainly saw science as a kind of calling, and one with as much legitimacy as a religious calling.

I get curious about new things. My real strength is going into a field that has not been investigated before, and finding new approaches to it.