World Quotes by Carl Sagan

Not explaining science seems to me perverse. When you're in love, you want to tell the world.

— Carl Sagan

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

— Carl Sagan

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

— Carl Sagan

Books are key to understanding the world and participating in a democratic society.

— Carl Sagan

Organic as a dandelion seed, [the ship of our imagination] will carry us to worlds of dreams and worlds of facts

— Carl Sagan

How lucky we are to live in this time / the first moment in human history / when we are in fact…

— 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 go about our daily lives understanding almost nothing of the world.

— Carl Sagan

Personally, I would be delighted if there were a life after death, especially if it permitted me to continue to learn about…

— Carl Sagan

There are naive questions, tedious questions, ill-phrased questions, questions put after inadequate self-criticism. But every question is a cry to understand the…

— 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…

— Carl Sagan

Science is an attempt, largely successful, to understand the world, to get a grip on things, to get hold of ourselves, to…

— Carl Sagan

“The Apollo pictures of the whole Earth conveyed to multitudes something well known to astronomers: On the scale of the worlds -…

— Carl Sagan

If our long-term survival is at stake, we have a basic responsibility to our species to venture to other worlds. Sailors on…

— Carl Sagan

We humans look rather different from a tree. Without a doubt we perceive the world differently than a tree does. But down…

— Carl Sagan

Much of human history can, I think, be described as a gradual and sometimes painful liberation from provincialism, the emerging awareness that…

— Carl Sagan

“It has been said that astronomy is a humbling and character-building experience. There is perhaps no better demonstration of the folly of…

— Carl Sagan

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

— Carl Sagan

It is sometimes said that scientists are unromantic, that their passion to figure out robs the world of beauty and mystery. But…

— Carl Sagan

Eratosthenes was the director of the great library of Alexandria, the Centre of science and learning in the ancient world. Aristotle had…

— Carl Sagan

By exploring other worlds we safeguard this one. By itself, I think this fact more than justifies the money our species has…

— Carl Sagan

Science is a way of thinking much more than it is a body of knowledge. Its goal is to find out how…

— Carl Sagan

Every aspect of Nature reveals a deep mystery and touches our sense of wonder and awe. Those afraid of the universe as…

— Carl Sagan

If you are only skeptical, then no new ideas make it through to you. You become a crotchety old person convinced that…

— Carl Sagan

In the way that scepticism is sometimes applied to issues of public concern, there is a tendency to belittle, to condescend, to…

— Carl Sagan

Present global culture is a kind of arrogant newcomer. It arrives on the planetary stage following four and a half billion years…

— Carl Sagan

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

— Carl Sagan

Books tap the wisdom of our species -- the greatest minds, the best teachers -- from all over the world and from…

— Carl Sagan

So those who wished for some central cosmic purpose for us, or at least our world, or at least our solar system,…

— Carl Sagan

Is mankind alone in the universe? Or are there somewhere other intelligent beings looking up into their night sky from very different…

— Carl Sagan

Time spent with children is time well spent. Their little minds are not constrained by 'reality' or focused upon goals. Anything and…

— Carl Sagan

A multitude of aspects of the natural world that were considered miraculous only a few generations ago are now thoroughly understood in…

— Carl Sagan

In more than one respect, the exploring of the Solar System and homesteading other worlds constitutes the beginning, much more than the…

— 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

The Hindu religion is the only of the World's great faiths dedicated to the idea that the Cosmos itself undergoes an immense,…

— Carl Sagan

Since, in the long run, every planetary society will be endangered by impacts from space, every surviving civilization is obliged to become…

— Carl Sagan

We live in a vast and awesome universe in which, daily, suns are made and worlds destroyed, where humanity clings to an…

— Carl Sagan

A general problem with much of Western theology in my view is that the god portrayed is too small. It is a…

— Carl Sagan

But I try not to think with my gut. If I'm serious about understanding the world, thinking with anything besides my brain,…

— Carl Sagan

A millennium before Europeans were willing to divest themselves of the Biblical idea that the world was a few thousand years old,…

— Carl Sagan