All Quotes, Carl Sagan

29 Carl Sagan Quotes And Sayings

Carl Edward Sagan was an American astronomer, cosmologist, astrophysicist, astrobiologist, author, science popularizer, and science communicator in astronomy and other natural sciences. Sagan published more than 600 scientific papers and articles and was author, co-author or editor of more than 20 books. Sagan advocated scientific skeptical inquiry and the scientific method, pioneered exobiology and promoted the Search for Extra-Terrestrial Intelligence (SETI). This are 29 beautiful thoughts from the scientist Carl Sagan.


Extinction is the rule. Survival is the exception. - Carl Sagan
If you wish to make an apple pie from scratch, you must first invent the universe. - Carl Sagan
A celibate clergy is an especially good idea, because it tends to suppress any hereditary propensity toward fanaticism. - Carl Sagan
For small creatures such as we the vastness is bearable only through love. - Carl Sagan
Absence of evidence is not evidence of absence. - Carl Sagan
It's been said that astronomy is a humbling and, I might add, a character-building experience. - Carl Sagan
Most of the people that I deal with are human. So I've had a lot of experience with that. - Carl Sagan
We're in very bad trouble if we don't understand the planet we're trying to save. - Carl Sagan
The universe seems neither benign nor hostile, merely indifferent. - Carl Sagan
The universe seems neither benign nor hostile, merely indifferent. - Carl Sagan
The universe is not required to be in perfect harmony with human ambition. - Carl Sagan
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
Every one of us is, in the cosmic perspective, precious. If a human disagrees with you, let him live. In a hundred billion galaxies, you will not find another. - Carl Sagan
The nitrogen in our DNA, the calcium in our teeth, the iron in our blood, the carbon in our apple pies was made in the interiors of collapsing stars. We are made of star stuff. - Carl Sagan
Extraordinary claims require extraordinary evidence. - Carl Sagan
Imagination will often carry us to worlds that never were, but without it we go nowhere. - Carl Sagan
It pays to keep an open mind, but not so open your brains fall out. - Carl Sagan
We can judge our progress by the courage of our questions and the depth of our answers, our willingness to embrace what is true rather than what feels good. - Carl Sagan
We are like butterflies that flutter for a day and think it is forever. - Carl Sagan
The universe is a pretty big place. If it’s just us, seems like an awful waste of space. - Carl Sagan
It is far better to grasp the universe as it really is than to persist in delusion, however satisfying and reassuring. - Carl Sagan
A celibate clergy is an especially good idea, because it tends to suppress any hereditary propensity toward fanaticism. - Carl Sagan
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
The universe is not required to be in perfect harmony with human ambition. - Carl Sagan
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
The brain is like a muscle. When it is in use we feel very good. Understanding is joyous. - Carl Sagan
We’ve arranged a civilization in which most crucial elements profoundly depend on science and technology. - Carl Sagan
If you wish to make an apple pie from scratch, you must first invent the universe. - Carl Sagan
Absence of evidence is not evidence of absence. - Carl Sagan
Please share this collection of Carl Sagan Quotes.
Sharing is Caring: share on facebook buttonshare on twitter button