The brain is like a muscle. When it is in use we feel very good. Understanding is joyous. — Carl Sagan Copy Share Image
“We must understand the Cosmos as it is and not confuse how it is with how we wish it to be.” — Carl Sagan Copy Share Image
Our species needs, and deserves, a citizenry with minds wide awake and a basic understanding of how the world works. — Carl Sagan Copy Share Image
“[...] science carries us towards an understanding of how the world is, rather than how we would wish it to be [...]” — Carl Sagan Copy Share Image
A central lesson of science is that to understand complex issues (or even simple ones), we must try to free our minds… — Carl Sagan Copy Share Image
We are an intelligent species and the use of our intelligence quite properly gives us pleasure. In this respect the brain is… — Carl Sagan Copy Share Image
“...explorations that are exhilarating to consider. They remind us that humans have evolved to wonder, that understanding is a joy, that knowledge… — Carl Sagan Copy Share Image
“If we are to send people, it must be for a very good reason - and with a realistic understanding that almost… — Carl Sagan Copy Share Image
The very act of understanding is a celebration of joining, merging, even if on a very modest scale, with the magnificence of… — Carl Sagan Copy Share Image
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 Copy Share Image
The understanding of the intent of the artist which I can achieve when high sometimes carries over to when I’m down. This… — Carl Sagan Copy Share Image
The size and age of the Cosmos are beyond ordinary human understanding. Lost somewhere between immensity and eternity is our tiny planetary… — Carl Sagan Copy Share Image
“For a long time the human instinct to understand was thwarted by facile religious explanations, as in ancient Greece in the time… — Carl Sagan Copy Share Image
“Science is more than a body of knowledge. It is a way of thinking; a way of skeptically interrogating the universe with… — Carl Sagan Copy Share Image
Widespread intellectual and moral docility may be convenient for leaders in the short term, but it is suicidal for nations in the… — Carl Sagan Copy Share Image
What a splendid perspective contact with a profoundly different civilization might provide! In a cosmic setting vast and old beyond ordinary human… — Carl Sagan Copy Share Image
“In its encounter with Nature, science invariably elicits a sense of reverence and awe. The very act of understanding is a celebration… — Carl Sagan Copy Share Image
“Dartmouth College employs computer learning techniques in a very broad array of courses. For example, a student can gain a deep insight… — Carl Sagan Copy Share Image
“I think I’m able to explain things because understanding wasn't entirely easy for me. Some things that the most brilliant students were… — Carl Sagan Copy Share Image
“This sort of information gathering is precisely what we call play. And the important function of play is thus revealed: it permits… — Carl Sagan Copy Share Image
“The size and age of the Cosmos are beyond ordinary human understanding. Lost somewhere between immensity and eternity is our tiny planetary… — Carl Sagan Copy Share Image
“For thousands of years humans were oppressed— as some of us still are— by the notion that the universe is a marionette… — Carl Sagan Copy Share Image
It is of interest to note that while some dolphins are reported to have learned English - up to fifty words used… — Carl Sagan Copy Share Image
“Because science carries us toward an understanding of how the world is, rather than how we would wish it to be, its… — Carl Sagan Copy Share Image
Eratosthenes was the director of the great library of Alexandria, the Centre of science and learning in the ancient world. Aristotle had… — Carl Sagan Copy Share Image
In science it often happens that scientists say, 'You know that's a really good argument; my position is mistaken,' and then they… — Carl Sagan Copy Share Image
The library connects us with the insight and knowledge, painfully extracted from Nature, of the greatest minds that ever were, with the… — Carl Sagan Copy Share Image
It is sometimes said that scientists are unromantic, that their passion to figure out robs the world of beauty and mystery. But is it… — Carl Sagan Copy Share
The prediction of nuclear winter is drawn not, of course, from any direct experience with the consequences of global nuclear war, but rather from… — Carl Sagan Copy Share
The suppression of uncomfortable ideas may be common in religion or in politics, but it is not the path to knowledge; it has no… — Carl Sagan Copy Share
“Telepathy’ literally means to feel at a distance, just as ‘telephone’ is to hear at a distance and ‘television’ is to see at a… — Carl Sagan Copy Share
“On the scale of worlds—to say nothing of stars or galaxies—humans are inconsequential, a thin film of life on an obscure and solitary lump… — Carl Sagan Copy Share
Every one of us is, in the cosmic perspective, precious. If a human disagrees with you, let him live. In a hundred billion galaxies,… — Carl Sagan Copy Share
In our time, we have sifted the sands of Mars, we have established a presence there, we have fulfilled a century of dreams! — Carl Sagan Copy Share
“[ When a religious couple wrote to Sagan about fulfilled prophecies, he wrote back in May 1996 :] If ‘fulfilled prophecy’ is your criterion,… — Carl Sagan Copy Share
“Books permit us to voyage through time, to tap the wisdom of our ancestors. The library connects us with the insight and knowledge, painfully… — Carl Sagan Copy Share
We live on a hunk of rock and metal that circles a humdrum star that is one of 400 billion other stars that make… — Carl Sagan Copy Share
A tiny blue dot set in a sunbeam. Here it is. That's where we live. That's home. We humans are one species and this… — Carl Sagan Copy Share
Any sufficiently crisp question can be answered by a single binary digit-0 or 1, yes or no. — Carl Sagan Copy Share
Humans — who enslave, castrate, experiment on, and fillet other animals — have had an understandable penchant for pretending animals do not feel pain.… — Carl Sagan Copy Share
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