1,131 Quotes by Carl Sagan

The Earth is a very small stage in a vast cosmic arena.

Ours is the first generation that has grown up with science-fiction ideas.

There is a lurking fear that some things are not meant to be known.

Maybe it's a little early. Maybe the time is not quite yet. But those other worlds - promising untold opportunities - beckon. Silently, they orbit the Sun, waiting.

It is all a matter of time scale. An event that would be unthinkable in a hundred years may be inevitable in a hundred million.

Except for fools and madmen, everyone knows that nuclear war would he an unprecedented human catastrophe.

We have entered, almost without noticing, an age of exploration and discovery unparalleled since the Renaissance.

I believe that the extraordinary should be pursued. But extraordinary claims require extraordinary evidence.

In the deepest sense the search for extraterrestrial intelligence is a search for ourselves.