Intelligent Life Quotes (2 quotes)
Hidden within the vast spaces of the Milky Way are over a billion targets for the search for intelligent life. … A decision has to be made as to which stars should be the first objects of this search, … [But] only stars not much different from the sun are likely to support intelligent creatures. So the search should concentrate on … the nearest of these stars first, since the inverse square law indicates that signals from the closest stars would be the strongest received on the earth.
In Intelligent Life in Space (1962), 99-100.
We only have to look at ourselves to see how intelligent life might develop into something we wouldn’t want to meet. I imagine they might exist in massive ships … having used up all the resources from their home planet. Such advanced aliens would perhaps become nomads, looking to conquer and colonize whatever planets they can reach.
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) -- 
