"I can live with doubt and uncertainty and not knowing. ... it's much more interesting to live not knowing than to have answers which might be wrong. ... I'm not absolutely sure of anything and there are many things I don't know anything about, such as whether it means anything to ask why we're here ... I might think about it a little bit ... but I don't have to know an answer, I don't feel frightened about not knowing things, by being lost in a mysterious universe without having any purpose, which is the way it is as far as I can tell. It doesn't frighten me."