Carl Sagan

There is in this Universe much of what seems to be design.

Carl Sagan

There is perhaps no better a demonstration of the folly of human conceits than this distant image of our tiny world.

Carl Sagan

Those afraid of the universe as it really is, those who pretend to nonexistent knowledge and envision a Cosmos centered on human beings will prefer the fleeting comforts of superstition.

Carl Sagan

Those at too great a distance may, I am well are, mistake ignorance for perspective.

Carl Sagan

Those with the courage to explore the weave and structure of the Cosmos, even where it differs profoundly from their wishes and prejudices, will penetrate its deepest mysteries.

Carl Sagan

Thus the recent rapid evolution of human intelligence is not only the cause of but also the only conceivable solution to the many serious problems that beset us.

Carl Sagan

We are not smart enough to decide which pieces of knowledge are permissible and which are not.

Carl Sagan

We are star stuff which has taken its destiny into its own hands.

Carl Sagan

We are the children equally of the Sky and the Earth.

Carl Sagan

We have also arranged things so that almost no one understands science and technology. This is a prescription for disaster. We might get away with it for a while, but sooner or later this combustible mixture of ignorance and power is going to blow up in our faces.

Carl Sagan