I'm sure the universe is full of intelligent life. It's just been too intelligent to come here.

“Whether we are based on carbon or on silicon makes no fundamental difference; w…”

“After their encounter on the approach to Jupiter, there would aways be a secret…”

“. . . the newspapers of Utopia, he had long ago decided, would be terribly dull.”

“For the last century, almost all top political appointments [on the planet Eart…”