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" We live in a society exquisitely dependent on science and technology, in which hardly anyone knows anything about science and technology. "
Carl Sagan
Technology
Live
Society
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" Only two things are infinite, the universe and human stupidity, and I'm not sure about the former. "
Albert Einstein
Science
Stupidity
Infinite
" But the fact that some geniuses were laughed at does not imply that all who are laughed at are geniuses. They laughed at Columbus, they laughed at Fulton, they laughed at the Wright Brothers. But they also laughed at Bozo the Clown. "
Carl Sagan
Columbus
Brothers
Clown
" It's been said that astronomy is a humbling and, I might add, a character-building experience. "
Carl Sagan
Add
Said
Experience
" The dangers of not thinking clearly are much greater now than ever before. It's not that there's something new in our way of thinking - it's that credulous and confused thinking can be much more lethal in ways it was never before. "
Carl Sagan
New
Way
Thinking
" Most of the people that I deal with are human. So I've had a lot of experience with that. "
Carl Sagan
Deal
Experience
Most
" We have also arranged things so that almost no one understands science and technology. This is a prescription for disaster. We might get away with it for a while, but sooner or later this combustible mixture of ignorance and power is going to blow up in our faces. "
Carl Sagan
Ignorance
Technology
Power
" We are the representatives of the cosmos; we are an example of what hydrogen atoms can do, given 15 billion years of cosmic evolution. "
Carl Sagan
Evolution
Atoms
Years
" No other planet in the solar system is a suitable home for human beings; it's this world or nothing. That's a very powerful perception. "
Carl Sagan
World
Home
Solar
" We're in very bad trouble if we don't understand the planet we're trying to save. "
Carl Sagan
Understand
Trouble
Bad
" Science is about knowing; engineering is about doing. "
Henry Petroski
Engineering
Knowing
Doing
" Our species needs, and deserves, a citizenry with minds wide awake and a basic understanding of how the world works. "
Carl Sagan
How
Minds
Awake
" A celibate clergy is an especially good idea, because it tends to suppress any hereditary propensity toward fanaticism. "
Carl Sagan
Good Idea
Clergy
Idea
" If we long to believe that the stars rise and set for us, that we are the reason there is a Universe, does science do us a disservice in deflating our conceits? "
Carl Sagan
Stars
Universe
Science
" The boundary between space and the earth is purely arbitrary. And I'll probably always be interested in this planet - it's my favorite. "
Carl Sagan
Planet
Favorite
Earth
" For small creatures such as we the vastness is bearable only through love. "
Carl Sagan
Only
Small
Through
" Who are we? We find that we live on an insignificant planet of a humdrum star lost in a galaxy tucked away in some forgotten corner of a universe in which there are far more galaxies than people. "
Carl Sagan
Lost
Live
People
" Extinction is the rule. Survival is the exception. "
Carl Sagan
Exception
Rule
Extinction
" Our posturings, our imagined self-importance, the delusion that we have some privileged position in the universe, are challenged by this point of pale light. Our planet is a lonely speck in the great enveloping cosmic dark. "
Carl Sagan
Light
Great
Dark
" 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
Yourself
You
Light
" Today, we're still loaded down - and, to some extent, embarrassed - by ancient myths, but we respect them as part of the same impulse that has led to the modern, scientific kind of myth. But we now have the opportunity to discover, for the first time, the way the universe is in fact constructed as opposed to how we would wish it to be constructed. "
Carl Sagan
Wish
Today
Opportunity
" Science is not only a disciple of reason but, also, one of romance and passion. "
Stephen Hawking
Reason
Only
Passion
" We are not without empathetic terror when we open Pascal's 'Pensees' and read, 'I am the great silent spaces between worlds.' "
Carl Sagan
Without
Silent
Read
" There is a wide, yawning black infinity. In every direction, the extension is endless; the sensation of depth is overwhelming. And the darkness is immortal. Where light exists, it is pure, blazing, fierce; but light exists almost nowhere, and the blackness itself is also pure and blazing and fierce. "
Carl Sagan
Direction
Black
Darkness
" The brain is like a muscle. When it is in use we feel very good. Understanding is joyous. "
Carl Sagan
Brain
Understanding
Intelligence
" Science is a way of thinking much more than it is a body of knowledge. "
Carl Sagan
Thinking
Way
Science
" It is far better to grasp the universe as it really is than to persist in delusion, however satisfying and reassuring. "
Carl Sagan
Space
Better
Delusion
" The professed function of the nuclear weapons on each side is to prevent the other side from using their nuclear weapons. If that's all it is, then we've gotta as: how many nuclear weapons do you need to do that? "
Carl Sagan
Nuclear Weapons
You
Side
" Science and technology revolutionize our lives, but memory, tradition and myth frame our response. "
Arthur M. Schlesinger
Memory
Tradition
Technology
" For me, it is far better to grasp the Universe as it really is than to persist in delusion, however satisfying and reassuring. "
Carl Sagan
Far
Universe
Better
" You probably don't need more weapons than what's required to destroy every city on earth. There's only 2,300 cities. So, the United States, by that criteria, only needs 2,300 nuclear weapons - well, we've got more than 25,000! "
Carl Sagan
Destroy
Need
You