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 hope I've lived a life of science whose style will encourage younger people.
I don't believe anybody can really grasp everything that's even in one textbook.
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.
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.
If we have isolated individuals able to inflict enormous harm, imagine what a single lunatic can do with a nuclear weapon. I think the whole base of civil society is at risk.