Quotes from Carl Sagan

For we are the local embodiment of a Cosmos grown to self-awareness. We have begun to contemplate our origins: starstuff pondering the stars; organized assemblages of ten billion billion billion atoms considering the evolution of atoms; tracing the long journey by which, here at least, consciousness arose. Our loyalties are to the species and the planet. We speak for Earth. Our obligation to survive is owed not just to ourselves but also to that Cosmos, ancient and vast, from which we spring.

Imagine a society in which every speech in the Congressional Record, every television commercial, every sermon had an accompanying error bar or its equivalent.

For what a man had rather were true he more readily believes.

Would you say, "Billy, be home by the time the Earth has rotated enough so as to occult the Sun below the local horizon"? Billy would be long gone before you're finished.

Hanya langit. Terkadang saya merasa saya akan jatuh ke langit.

In addition, science is a delight; evolution has arranged that we take pleasure in understanding - those who understand are more likely to survive.

If scientists can be fooled on the question of the simple interpretation of straightforward data of the sort that they are routinely obtaining from other kinds of astronomical objects, when the stakes are high, when the emotional predispositions are working, what must be the situation where the evidence is much weaker, where the will to believe is much greater, where the skeptical scientific tradition has hardly made a toehold - namely, in the area of religion?

They should have sent a poet.

There was a time before television, before motion pictures, before radio, before books. The greatest part of human existence was spent in such a time. Over the dying embers of the campfire, on a moonless night, we watched the stars.

The surface of the Earth is the shore of the cosmic ocean. From it we have learned most of what we know. Recently, we have waded a little out to sea, enough to dampen our toes or, at most, wet our ankles. The water seems inviting. The ocean calls. Some part of our being knows this is from where we came. We long to return. These aspirations are not, I think, irreverent, although they may trouble whatever gods may be. The

And when I concentrate on the stars, the planets, and their motions, I have an irresistible sense of machinery, clockwork, elegant precision working on a scale that, however lofty our aspirations, dwarfs and humbles us.

El océano nos llama. Hay una parte de nuestro ser conocedora de que nosotros venimos de allí. Deseamos retornar.

The obvious is sometimes false; the unexpected is sometimes true.

In a novel of ideas, the ideas have to work.

No Green Revolution, no hydroponics, no making the deserts bloom can beat an exponential population growth.

Being freed from superstition isn't enough for science to grow. One must also have the idea of interrogating Nature, of doing experiments.

Whether we believe in God depends very much on what we mean by God.

Haldane imagined a far future when the stars have darkened and space is mainly filled with a cold thin gas. Nevertheless, if we wait long enough statistical fluctuations in the density of this gas will occur. Over immense periods of time the fluctuations will be sufficient to reconstitute a Universe something like our own. If the Universe is infinitely old, there will be an infinite number of such reconstitutions, Haldane pointed out.

Such stories include Robert Heinlein's The Door into Summer, Alfred Bester's The Stars My Destination and The Demolished Man, Jack Finney's Time and Again, Frank Herbert's Dune and Walter M. Miller's A Canticle for Leibowitz.

We knew the Moon from our earliest days. It was there when our ancestors descended from the trees into the savannahs, when we learned to walk upright, when we first devised stone tools, when we domesticated fire, when we invented agriculture and built cities and set out to subdue the Earth.

Our difficulties in understanding or effectuating communication with other animals may arise from our reluctance to grasp unfamiliar ways of dealing with the world.

Fear of death, which in some respects is adaptive in the evolutionary struggle for existence, is maladaptive in warfare. Those cultures that teach an afterlife of bliss for heroes — or even for those who just did what those in authority told them — might gain a competitive advantage.

And therefore I would say that the first thing to do is to realize that governments, all governments, at least on occasion, lie. And some of them do it all the time - some of them do it only every second statement - but, by and large, governments distort the facts in order to remain in office.

We will die and we fear death. This fear is worldwide and transcultural. It probably has significant survival value. Those who wish to postpone or avoid death can improve the world, reduce its perils, make children who will live after us, and create great works by which they will be remembered.