I was a bad practicing physician because I was never sure of the diagnosis or of the treatment.

Try hard to find out what you're good at and what your passions are, and where the two converge, and build your life around that.

I started on the use of the Internet for scientific communication. Our research group was one of the very first to make really systematic use of it as a way of managing research projects.

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.

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

I got my Nobel Prize for my lab work.

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.