“It's kind of a rule of thumb for me to self-doubt going into any kind of project. I always think that I shouldn't be doing it and I don't know how to do it and I'm going to fail and that I fooled them. I always try to find a way out.”
“There's been a lot of discussion about NASA culture and changing that. I think our culture has always been one of trying to do a very difficult job and do it well.”