I first came out against Castro in June 1968, fifteen months after my book had been published, and you cannot imagine how quickly a void was created around me.
I believe in past lives but I know nothing about mine and I don't want to know. I live in the present, taking one day at a time.
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.