Carl Sagan

A multitude of aspects of the natural world that were considered miraculous only a few generations ago are now thoroughly understood in terms of physics and chemistry.

Carl Sagan

A new consciousness is developing which sees the earth as a single organism and recognizes that an organism at war with itself is doomed. We are one planet.

Carl Sagan

A religion old or new, that stressed the magnificence of the universe as revealed by modern science, might be able to draw forth reserves of reverence and awe hardly tapped by the conventional faiths. Sooner or later such a religion will emerge.

Carl Sagan

A religion, old or new, that stressed the magnificence of the Universe as revealed by modern science might be able to draw forth reserves of reverence and awe hardly tapped by the conventional faiths.

Carl Sagan

A stars rich in europium; of distant galaxies analyzed through the collective light of a hundred billion constituent stars. Astronomical spectroscopy is an almost magical technique. It amazes me still. Auguste Comte picked a particularly unfortunate example.

Carl Sagan

A tiny blue dot set in a sunbeam. Here it is. That’s where we live. That’s home. We humans are one species and this is our world. It is our responsibility to cherish it. Of all the worlds in our solar system, the only one so far as we know, graced by life.

Carl Sagan

Absolute certainty will always elude us. We will always be mired in error. The most each generation can hope for is to reduce the error.

Carl Sagan

Accommodation to change, the thoughtful pursuit of alternative futures are keys to the survival of civilization and perhaps of the human species.

Carl Sagan

Across the sea of space, the stars are other suns.

Carl Sagan

Advances in medicine and agriculture have saved vastly more lives than have been lost in all the wars in history.

Carl Sagan