Carl Edward Sagan Quotes

"Absence of evidence is not evidence of absence."

"We are the product of 4.5 billion years of fortuitous, slow biological evolution. There is no reason to think that the evolutionary process has stopped. Man is a transitional animal. He is not the climax of creation."

"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?"

"The universe is not required to be in perfect harmony with human ambition."

"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."

"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."

"When you make the finding yourself - even if you're the last person on Earth to see the light - you'll never forget it."

"For me, it is far better to grasp the Universe as it really is than to persist in delusion, however satisfying and reassuring."

"In order to make an apple pie from scratch, you must first create the universe."

"I am often amazed at how much more capability and enthusiasm for science there is among elementary school youngsters than among college students."

"A celibate clergy is an especially good idea, because it tends to suppress any hereditary propensity toward fanaticism."

"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."

"Somewhere, something incredible is waiting to be known."

"Science is a way of thinking much more than it is a body of knowledge."

"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."

"We've arranged a civilization in which most crucial elements profoundly depend on science and technology."

"Imagination will often carry us to worlds that never were. But without it we go nowhere."

"The universe seems neither benign nor hostile, merely indifferent."

"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."

"The brain is like a muscle. When it is in use we feel very good. Understanding is joyous."