astronomer Quotes

Quotations from famous astronomers



What are the best astronomer with famous quotes

Carl Sagan quotes, sayings and images are among the best your can read. Quotes from other astronomer are available below. They proudly represent astronomer nature and its wisdom through ages.

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What are the best astronomer quotes

Check out best quotes of all time. Access the best astronomer quotations, top astronomer sayings on images and beautiful affirmations.


For small creatures such as we the vastness is bearable only through love.

Carl Sagan
  • love

Extinction is the rule, survival is the exception.

Carl Sagan
  • rule

Somewhere, something incredible is waiting to be known.

Carl Sagan
  • Mystery

Imagination will often carry us to worlds that never were. But without it we go nowhere.

Carl Sagan
  • imagination

Where we have strong emotions, we're liable to fool ourselves.

Carl Sagan
  • Emotions


I don't want to believe. I want to know.

Carl Sagan
  • knowledge

It is far better to grasp the universe as it really is than to persist in delusion, however satisfying and reassuring.

Carl Sagan
  • delusion

Our ancestors worshipped the Sun, and they were not that foolish. It makes sense to revere the Sun and the stars, for we are their children.

Carl Sagan
  • Space

If you want to make an apple pie from scratch, you must first create the universe.

Carl Sagan
  • Creation

We live in a society exquisitely dependent on science and technology, in which hardly anyone knows anything about science and technology.

Carl Sagan
  • anyone

The universe is not required to be in perfect harmony with human ambition.

Carl Sagan
  • ambition

We make our world significant by the courage of our questions and by the depth of our answers.

Carl Sagan
  • Questions

Our species needs, and deserves, a citizenry with minds wide awake and a basic understanding of how the world works.

Carl Sagan
  • awake

The universe seems neither benign nor hostile, merely indifferent.

Carl Sagan
  • benign

If we like them, they're freedom fighters . . . If we don't like them, they're terrorists. In the unlikely case we can't make up our minds, they're temporarily only guerrillas.

Carl Sagan
  • Terrorism

For me, it is far better to grasp the Universe as it really is than to persist in delusion, however satisfying and reassuring.

Carl Sagan
  • delusion

If you wish to make an apple pie from scratch, you must first invent the universe.

Carl Sagan
  • nature

I am often amazed at how much more capability and enthusiasm for science there is among elementary school youngsters than among college students.

Carl Sagan
  • education

Modern science has been a voyage into the unknown, with a lesson in humility waiting at every stop. Many passengers would rather have stayed home.

Carl Sagan
  • Humility

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

Carl Sagan
  • Discovery

Books tap the wisdom of our species -- the greatest minds, the best teachers -- from all over the world and from all our history. And they're patient.

Carl Sagan
  • Books

In the fabric of space and in the nature of matter, as in a great work of art, there is, written small, the artist's signature.

Carl Sagan
  • Artist

A celibate clergy is an especially good idea, because it tends to suppress any hereditary propensity toward fanaticism.

Carl Sagan
  • celibate

The brain is like a muscle. When it is in use we feel very good. Understanding is joyous.

Carl Sagan
  • intelligence

Science is a way of thinking much more than it is a body of knowledge.

Carl Sagan
  • science

I can find in my undergraduate classes, bright students who do not know that the stars rise and set at night, or even that the Sun is a star.

Carl Sagan
  • bright

If we long to believe that the stars rise and set for us, that we are the reason there is a Universe, does science do us a disservice in deflating our conceits?

Carl Sagan
  • believe

All of the books in the world contain no more information than is broadcast as video in a single large American city in a single year. Not all bits have equal value.

Carl Sagan
  • technology

Since, in the long run, every planetary civilization will be endangered by impacts from space, every surviving civilization is obliged to become spacefaring--not because of exploratory or romantic zeal, but for the most practical reason imaginable: staying alive... If our long-term survival is at stake, we have a basic responsibility to our species to venture to other worlds.

Carl Sagan
  • humanity

In science it often happens that scientists say, 'You know that's a really good argument; my position is mistaken,' and then they would actually change their minds and you never hear that old view from them again. They really do it. It doesn't happen as often as it should, because scientists are human and change is sometimes painful. But it happens every day. I cannot recall the last time something like that happened in politics or religion.

Carl Sagan
  • politics

Science is not only compatible with spirituality; it is a profound source of spirituality.

Carl Sagan
  • metaphysics

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

Carl Sagan
  • space

Most of the people that I deal with are human. So I've had a lot of experience with that.

Carl Sagan
  • experience

I've written a number of books that have to do with the evolution of humans, human intelligence, human emotions.

Carl Sagan
  • intelligence

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 States, by that criteria, only needs 2,300 nuclear weapons - well, we've got more than 25,000!

Carl Sagan
  • city

The professed function of the nuclear weapons on each side is to prevent the other side from using their nuclear weapons. If that's all it is, then we've gotta as: how many nuclear weapons do you need to do that?

Carl Sagan
  • need

It's been said that astronomy is a humbling and, I might add, a character-building experience.

Carl Sagan
  • experience

No other planet in the solar system is a suitable home for human beings; it's this world or nothing. That's a very powerful perception.

Carl Sagan
  • home

We are not without empathetic terror when we open Pascal's 'Pensees' and read, 'I am the great silent spaces between worlds.'

Carl Sagan
  • silent

We start out a million years ago in a small community on some grassy plain; we hunt animals, have children, and develop a rich social, sexual, and intellectual life, but we know almost nothing about our surroundings.

Carl Sagan
  • life

We hunger to understand, so we invent myths about how we imagine the world is constructed - and they're, of course, based upon what we know, which is ourselves and other animals. So we make up stories about how the world was hatched from a cosmic egg or created after the mating of cosmic deities or by some fiat of a powerful being.

Carl Sagan
  • world

Even these stars, which seem so numerous, are as sand, as dust - or less than dust - in the enormity of the space in which there is nothing.

Carl Sagan
  • stars

Absence of evidence is not evidence of absence.

Carl Sagan
  • absence

We're in very bad trouble if we don't understand the planet we're trying to save.

Carl Sagan
  • bad

Today, we're still loaded down - and, to some extent, embarrassed - by ancient myths, but we respect them as part of the same impulse that has led to the modern, scientific kind of myth. But we now have the opportunity to discover, for the first time, the way the universe is in fact constructed as opposed to how we would wish it to be constructed.

Carl Sagan
  • respect

Our posturings, our imagined self-importance, the delusion that we have some privileged position in the universe, are challenged by this point of pale light. Our planet is a lonely speck in the great enveloping cosmic dark.

Carl Sagan
  • light

The dangers of not thinking clearly are much greater now than ever before. It's not that there's something new in our way of thinking - it's that credulous and confused thinking can be much more lethal in ways it was never before.

Carl Sagan
  • thinking

There is a wide, yawning black infinity. In every direction, the extension is endless; the sensation of depth is overwhelming. And the darkness is immortal. Where light exists, it is pure, blazing, fierce; but light exists almost nowhere, and the blackness itself is also pure and blazing and fierce.

Carl Sagan
  • light

In our obscurity - in all this vastness - there is no hint that help will come from elsewhere to save us from ourselves. It is up to us.

Carl Sagan
  • help

We are the representatives of the cosmos; we are an example of what hydrogen atoms can do, given 15 billion years of cosmic evolution.

Carl Sagan
  • evolution

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