Work Out Quotes (1 quote)
To my mathematical brain, the numbers alone make thinking about aliens perfectly rational. The real challenge is to work out what aliens might actually be like.
From Discovery TV series, Into the Universe With Stephen Hawking (2010). As quoted on nbcnews.com webpage, 'Hawking: Aliens may pose risks to Earth' (25 Apr 2010). He warned that rather than actively trying to communicate with extra-terrestrials, humans should do everything possible to avoid contact.
In science it often happens that scientists say, 'You know that's a really good argument; my position is mistaken,' and then they would actually change their minds and you never hear that old view from them again. They really do it. It doesn't happen as often as it should, because scientists are human and change is sometimes painful. But it happens every day. I cannot recall the last time something like that happened in politics or religion.
(1987) -- 
