Life Quotes by Carl Sagan

“We make our purpose.”

— Carl Sagan

We can't help it. Life looks for life.

— Carl Sagan

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

— Carl Sagan

We are the custodians of life's meaning.

— Carl Sagan

Be grateful everyday for the brief but magnificent opportunity that life provides.

— Carl Sagan

But down deep, at the molecular heart of life we're essentially identical to trees.

— Carl Sagan

“To live in the hearts we leave behind is to live forever.”

— Carl Sagan

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

— Carl Sagan

I would be very ashamed of my civilization if we did not try to find out if there is life in outer…

— Carl Sagan

“The nature of life on Earth and the search for life elsewhere are two sides of the same question—the search for who…

— Carl Sagan

Has there ever been a religion with the prophetic accuracy and reliability of science? . . . No other human institution comes close.

— Carl Sagan

“Thus, 99 percent of the Earth’s atmosphere is of biological origin. The sky is made by life.”

— Carl Sagan

“On the scale of worlds—to say nothing of stars or galaxies—humans are inconsequential, a thin film of life on an obscure and…

— Carl Sagan

“But deep down, the the molecular heart of life, the trees and we are essentially identical.”

— Carl Sagan

If there is life, then I believe we should do nothing to disturb that life. Mars then, belongs to the Martians, even…

— Carl Sagan

Life is but a momentary glimpse of the wonder of this astonishing universe, and it is sad to see so many dreaming…

— 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

When you realize that no one really knows what they are doing and that everyone is doing the best they can according…

— Carl Sagan

There are in fact 100 billion galaxies, each of which contain something like a 100 billion stars. Think of how many stars,…

— Carl Sagan

The lifetime of a human being is measured by decades, the lifetime of the Sun is a hundred million times longer. Compared…

— Carl Sagan

We start out a million years ago in a small community on some grassy plain; we hunt animals, have children, and develop…

— 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

We are...capable of using our compassion and our intelligence, our technology and our wealth, to make an abundant and meaningful life for…

— 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

“Now, it would be wholly foolish to deny the existence of laws of nature. And if that is what we are talking…

— Carl Sagan

“The study of the galaxies reveals a universal order and beauty. It also shows us chaotic violence on a scale hitherto undreamed…

— Carl Sagan

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

— Carl Sagan

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

“There are so many examples of human misuse of the Earth that even phrasing this question chills me. If there is life…

— 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

The significance of our lives and our fragile planet is then determined only by our own wisdom and courage. We are the…

— Carl Sagan

Discussing the possibilities of extraterrestrial life: I would love it even if they were short, sullen, grumpy and sexually obsessed. But there…

— Carl Sagan

She had studied the universe all her life, but had overlooked its clearest message: For small creatures such as we the vastness…

— Carl Sagan

The beauty of a living thing is not the atoms that go into it, but the way those atoms are put together.

— Carl Sagan

“Observation: there was absolutely nothing to see on Venus. Conclusion: it must be covered with life.”

— Carl Sagan

Some racists still reject the plain testimony written in the DNA that all the races are not only human but nearly indistinguishable. . . .

— Carl Sagan

“We are alive and we resonate with idea of life elsewhere, but only careful accumulation and assessment of the evidence can tell…

— Carl Sagan

An atheist is someone who is certain that God does not exist, someone who has compelling evidence against the existence of God.…

— Carl Sagan

“If you want to save your child from polio, you can pray or you can inoculate. ... Choose science.”

— Carl Sagan