Allen Quote by Seth Shostak

You're the answer to are we alone in the universe?

— Jonathan Kent

Yes, of course. Are you really so arrogant as to believe we are alone in this universe? Millions of stars, and we're supposed to…

— Tom Cruise

"Are we alone in the universe?" This is a question which goes back to the dawn of history, but for most of human history…

— Paul Davies

Of course [I believe in aliens]. Are you so arrogant as to believe we are alone in this universe?

— Tom Cruise

Human beings have long wondered whether they are alone in the universe.

— Alan Stern

It's impossible that we're alone in the universe. Every time we think we're more special than others, we're proven wrong.

— Nathan Myhrvold

Two possibilities exist... Either we are alone in this universe, or we are not. Both are equally terryfying

— Live_Skate_Smoke

I believe that we're not alone. How can we be alone in an infinite universe? I'm using the word 'alien' with a little trepidation…

— Rose Leslie

Sometimes I think we're alone in the universe, and sometimes I think we're not. In either case the idea is quite staggering.

— Arthur C. Clarke

It's presumptuous for us to think we are the only beings in the cosmos.

— Louis Gossett, Jr

We are not alone in the universe. They have been coming here for a long time...

— Edgar Mitchell

People quite often think of the question 'Are we alone in the universe?' in terms of other civilizations out there: life forms that have…

— Dimitar Sasselov