Earth Quotes by Carl Sagan

Who will speak for Planet Earth?

— Carl Sagan

If we ruin the earth, there is no place else to go

— Carl Sagan

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

— Carl Sagan

The surface of the Earth is the shore of the cosmic ocean.

— Carl Sagan

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

— Carl Sagan

Our loyalties are to the species and the planet. We speak for Earth.

— 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

We on Earth have just awakened to the great oceans of space and time from which we have emerged.

— Carl Sagan

The Earth is a place. It is by no means the only place. It is not even a typical place.

— Carl Sagan

If we do not speak for Earth, who will? If we are not committed to our own survival, who will be?

— Carl Sagan

When you make the finding yourself - even if you're the last person on Earth to see the light - you'll never…

— Carl Sagan

If we are to survive, our loyalties must be broadened further, to include the whole human community, the entire planet Earth.

— Carl Sagan

The total number of stars in the Universe is larger than all the grains of sand on all the beaches of the…

— Carl Sagan

A new consciousness is developing which sees the earth as a single organism and recognizes that an organism at war with itself…

— Carl Sagan

“The total amount of energy from outside the solar system ever received by all the radio telescopes on the planet Earth is…

— Carl Sagan

The immense distances to the stars and the galaxies mean that we see everything ins pace int he past, some as they…

— Carl Sagan

When you look more generally at life on Earth, you find that it is all the same kind of life. There are…

— Carl Sagan

After the earth dies, some 5 billion years from now, after it's burned to a crisp, or even swallowed by the Sun,…

— Carl Sagan

We have heard the rationales offered by the nuclear superpowers. We know who speaks for the nations. But who speaks for the…

— Carl Sagan

These days there seems to be nowhere left to explore, at least on the land area of the Earth. Victims of their…

— Carl Sagan

You probably don't need more weapons than what's required to destroy every city on earth. There's only 2,300 cities. So, the United…

— Carl Sagan

The Platonists and their Christian successors held the peculiar notion that the Earth was tainted and somehow nasty, while the heavens were…

— Carl Sagan

National boundaries are not evident when we view the Earth from space. Fanatical ethnic or religious or national chauvinisms are a little…

— Carl Sagan

Perhaps, in retrospect, there would be little motivation even for malevolent extraterrestrials to attack the Earth; perhaps, after a preliminary survey, they…

— Carl Sagan

At a few hundred kilometers altitude, the Earth fills half your sky, and the band of blue that stretches from Mindanao to…

— Carl Sagan

The Hindu religion is the only one of the world’s great faiths dedicated to the idea that the Cosmos itself undergoes an…

— Carl Sagan

“It is pointless to worry about the possible malevolent intentions of an advanced civilization with whom we might make contact. It is…

— Carl Sagan

“Whatever the reason we first mustered the _Apollo_ program, however mired it was in Cold War nationalism and the instruments of death,…

— Carl Sagan

What a splendid perspective contact with a profoundly different civilization might provide! In a cosmic setting vast and old beyond ordinary human…

— Carl Sagan

“Look again at that dot. That's here. That's home. That's us. On it everyone you love, everyone you know, everyone you ever…

— Carl Sagan

“Long ago, when an early galaxy began to pour light out into the surrounding darkness, no witness could have known that billions…

— Carl Sagan

“The Cosmos extends, for all practical purposes, forever. After a brief sedentary hiatus, we are resuming our ancient nomadic way of life.…

— Carl Sagan

“From this distant vantage point, the Earth might not seem of any particular interest. But for us, it’s different. Consider again that…

— Carl Sagan

“The Earth is the only world known so far to harbor life. There is nowhere else, at least in the near future,…

— Carl Sagan

As the ancient myth makers knew, we are children equally of the earth and the sky.

— Carl Sagan

If you look at Earth from space you see a dot, that's here. That's home. That's us. It underscores the responsibility to…

— Carl Sagan

Some 5 billion years from now, there will be a last perfect day on Earth... then the sun will begin to die,…

— Carl Sagan

The boundary between space and the earth is purely arbitrary. And I'll probably always be interested in this planet - it's my…

— Carl Sagan

A blade of grass is a commonplace on Earth; it would be a miracle on Mars. Our descendants on Mars will know…

— Carl Sagan

We can make a similar examination, but with greater uncertainty, of the extraterrestrial hypothesis that holds that a wide range of UFOs…

— Carl Sagan