Carl Sagan Quotes

In this post, We known about american famous astronomer who played key role in American space program and wrote many amazing books. And also see some best Carl Sagan Quotes on book, cosmos, god, nature and many other subject.

Carl Sagan was an American astronomer, planetary scientist, cosmologist, astrophysicist, astrobiologist and author. His full name is Carl Edward Sagan.

He has a great contribution to the research of extraterrestrial life. Apart from this, He produced amino acids by using basic chemicals along with radiation.

Young Carl Sagan
Young Carl Sagan in 1951

Carl Sagan was born on November 9, 1934 in Bensonhurst, New York. His father, Samuel Sagan was an immigrant garment worker and his mother, Rachel Molly Gruber was a housewife.

In 1939, when Sagan was four years old, his parents took him to the New York World’s Fair. Those exhibits had a profound effect on his life. It became the biggest turning point in his life.

When he was in elementary school, he became very fond of nature. After that, he tried to know more and more about nature.

He studied at the University of Chicago. He did B.S. degree in physics, M.S. degree in physics and Ph.D. degree with his thesis Physical Studies of Planets.

Carl Sagan

Carl also received secret clearance from the U.S. Air Force and NASA. He assembled the Pioneer plaque and the Voyager Golden Record, the first physical message sent to space. And played an important role in many other American space programs.

Carl Sagan worked as a Professor of Astronomy and Space Sciences at Harvard and Cornell University during his career. Also, He was an author, co-author and editor of 20 books.

Along with that, he has written some popular science books like The Dragons of Eden, Cosmos and Broca’s Brain and Pale Blue Dot.

In which he co-wrote the 1980 popular television series Cosmos: A Personal Voyage.

Carl Sagan

This series is the most-watched series on American public television. The series has been seen by 500 million people in about 60 different countries.

Carl has received many awards and honours for his works including the NASA Distinguished Public Service Medal and the National Academy of Sciences Public Welfare Medal.

See also  Top 50+ William Faulkner Quotes About Time, Love And Truth Of Life

Also, He received 2 Emmy Awards, the Peabody Award, and the Hugo Award for his popular books.

This great astronomer, scientist and author Carl Sagan died of myelodysplasia on December 20, 1996 at the age of 62.

Carl Sagan Quotes :

inspiring carl sagan quotes
Somewhere, something incredible is waiting to be known. – Carl Sagan Quotes

If a human disagrees with you, let him live. In a hundred billion galaxies, you will not find another. – Carl Sagan

Literacy is the path from slavery to freedom. There are many kinds of slavery and many kinds of freedom, but reading is still the path. – Carl Sagan

The absence of evidence is not the evidence of absence. – Carl Sagan


The world is so exquisite with so much love and moral depth, that there is no reason to deceive ourselves with pretty stories for which there’s little good evidence.  – Carl Sagan

carl sagan quotes
If we can’t think for ourselves, if we’re unwilling to question authority, then we’re just put in the hands of those in power. – Carl Sagan Quotes

Exploration is in our nature. We began as wanderers, and we are wanderers still. – Carl Sagan

Extinction is the rule. Survival is the exception. – Carl Sagan

The nitrogen in our DNA, the calcium in our teeth, the iron in our blood, the carbon in our apple pies were made in the interiors of collapsing stars. We are made of starstuff. – Carl Sagan

We are star stuff which has taken its destiny into its own hands. – Carl Sagan

The truth may be puzzling. It may take some work to grapple with. It may be counterintuitive. It may contradict deeply held prejudices. It may not be consonant with what we desperately want to be true. But our preferences do not determine what’s true. – Carl Sagan
carl sagan quotes about writing
Writing is perhaps the greatest of human inventions. – Carl Sagan Quotes

A blade of grass is commonplace on Earth; it would be a miracle on Mars. – Carl Sagan

The nuclear arms race is like two sworn enemies standing waist-deep in gasoline. – 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

See also  Best 42 Rhonda Byrne Quotes That Explain The Power Of Positive Attitude

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

best carl sagan quotes
Every time we exercise self-criticism, every time we test our ideas against the outside world. – Carl Sagan

Avoidable human misery is more often caused not so much by stupidity as by ignorance. – Carl Sagan

We are star stuff harvesting sunlight. – Carl Sagan

You have to know the past to understand the present. – Carl Sagan

Nature is always more subtle, more intricate, more elegant than what we are able to imagine. – Carl Sagan

best carl sagan quotes
Extraordinary claims require extraordinary evidence. – Carl Sagan Quotes

Who is more humble? The scientist who looks at the universe with an open mind and accepts whatever the universe has to teach us. – Carl Sagan

Understanding is a kind of ecstasy. – Carl Sagan

Imagination will often carry us to worlds that never were, but without it we go nowhere. – Carl Sagan

People are not stupid. They believe things for reasons. – Carl Sagan

carl sagan quotes
We are like butterflies who flutter for a day and think it is forever. – Carl Sagan Quotes

The universe is a pretty big place. If it’s just us, seems like an awful waste of space. – 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 immense. – Carl Sagan

If it can be destroyed by the truth, it deserves to be destroyed by the truth. – Carl Sagan

We’re an interesting species. We’re capable of such beautiful dreams, and such horrible nightmares. We feel so lost, so cut off, so alone, the only we’re not. See, in all our searching, the only thing we’ve found that makes the emptiness bearable is each other. – Carl Sagan

carl sagan quotes
Judge your progress by the courage of your questions and the depth of your answers. – Carl Sagan

I don’t want to believe. I want to know. – Carl Sagan

Intelligence is not information alone but also judgement, the manner in which information is coordinated and used. – Carl Sagan

The visions we offer our children shape the future. – Carl Sagan

See also  35+ APJ Abdul Kalam Quotes That Can Improve Your Productivity

If we continue to accumulate only power and not wisdom, we will surely destroy ourselves. – Carl Sagan

The habit of skepticism is an essential prerequisite for responsible citizenship. – Carl Sagan

Carl Sagan Cosmos Quotes :

Carl Sagan Cosmos Quotes
Our future depends on how well we know this Cosmos in which we float like a mote of dust in the morning sky. – Carl Sagan Quotes

The cosmos is within us. We are made of star-stuff. We are a way for the universe to know itself. – Carl Sagan

We are a way for the cosmos to know itself. – Carl Sagan

We’re made of star stuff. We are a way for the cosmos to know itself. – Carl Sagan

Every one of us is, in the cosmic perspective, precious. – Carl Sagan

Carl Sagan Love Quotes :

When you’re in love, you want to tell the world. – Carl Sagan

For small creatures such as we, the vastness is bearable only through love. – Carl Sagan

Carl Sagan Book Quote :

Carl Sagan Book Quote
Books break the shackles of time ― proof that humans can work magic. – Carl Sagan

Books break the shackles of time. – Carl Sagan

Books are like seeds. They can lie dormant for centuries and then flower in the most unpromising soil. – Carl Sagan

Books permit us to voyage through time, to tap the wisdom of our ancestors. – Carl Sagan

Carl Sagan Book Quote
Books are patient where we are slow to understand, allow us to go over the hard parts as many times as we wish, and are never critical of our lapses. – Carl Sagan

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


What an astonishing thing a book is. you’re inside the mind of another person, maybe somebody dead for thousands of years. Across the millennia, an author is speaking clearly and silently inside your head, directly to you. – Carl Sagan

Carl Sagan Quotes About Science :

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

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