John C. Reilly

I actually envy actors who have a persona: 'This is the way I am. This is the part I play.' And do it over and over and over. To me, that's a lot easier than trying to reinvent yourself every six months.

The historical novelist has to consider what has actually happened, while the SF writer is dealing in possibilities, but they are both in the business of imagining a world unlike our own and yet connected to it.