“I guess I worry about weird existential things, like how do we spend our final act. This is a very emotional question. I can't answer it without crying. I think, You're 56 years old, what did you do? You raised two good kids. What am I going to do now that is as meaningful as that? I don't know the ”

“If mathematics is to be understood widely, we need to emphasise its elegance and its applications. Sometimes it seems that universities want to emphasise how difficult it is!”