66 Total Quotes

Carl+Edward Sagan Quotes

Carl Edward Sagan
We are a way for the cosmos to know itself
Carl Edward Sagan
#Cosmos

Carl Edward Sagan
Absence of evidence is not evidence of absence.
Carl Edward Sagan
#Absence

Carl Edward Sagan
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.
Carl Edward Sagan
#Evolution

Carl Edward Sagan
I worry that, especially as the Millennium edges nearer, pseudo-science and superstition will seem year by year more tempting, the siren song of unreason more sonorous and attractive.
Carl Edward Sagan
#Science

Carl Edward Sagan
I am often amazed at how much more capability and enthusiasm for science there is among elementary school youngsters than among college students.
Carl Edward Sagan
#American Scientist #Enthusiasm

Carl Edward Sagan
I believe that the extraordinary should be pursued. But extraordinary claims require extraordinary evidence.
Carl Edward Sagan
#Believe

Carl Edward Sagan
Knowing a great deal is not the same as being smart; intelligence is not information alone but also judgment, the manner in which information is collected and used
Carl Edward Sagan
#Information

Carl Edward Sagan
A celibate clergy is an especially good idea, because it tends to suppress any hereditary propensity toward fanaticism.
Carl Edward Sagan
#American Scientist

Carl Edward Sagan
The cosmos is all that is, or ever was, or ever will be.
Carl Edward Sagan
#Cosmos

Carl Edward Sagan
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 Edward Sagan
#American Scientist

Carl Edward Sagan
Somewhere, something incredible is waiting to be known.
Carl Edward Sagan
#American Scientist #Research

Carl Edward Sagan
We live in a society exquisitely dependent on science and technology, in which hardly anyone knows anything about science and technology.
Carl Edward Sagan
#American Scientist #Science

Carl Edward 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 Edward Sagan
#American Scientist

Carl Edward Sagan
The well-meaning contention that all ideas have equal merit seems to me little different from the disastrous contention that no ideas have any merit.
Carl Edward Sagan
#Ideas

Carl Edward Sagan
Skeptical scrutiny is the means, in both science and religion, by which deep thoughts can be winnowed from deep nonsense.
Carl Edward Sagan
#American Scientist #Nonsense

Carl Edward Sagan
Skeptical scrutiny is the means, in both science and religion, by which deep insights can be winnowed from deep nonsense
Carl Edward Sagan
#Nonsense

Carl Edward Sagan
For most of human history we have searched for our place in the cosmos. Who are we? What are we? We find that we inhabit an insignificant planet of a hum-drum star lost in a galaxy tucked away in some forgotten corner of a universe in which there are
Carl Edward Sagan
#Cosmos

Carl Edward Sagan
I also wish that the Pledge of Allegiance were directed at the Constitution and the Bill of Rights, as it is when the President takes his oath of office, rather than to the flag and the nation
Carl Edward Sagan
#Constitution

Carl Edward 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 Edward Sagan
#American Scientist

Carl Edward Sagan
Science is a way of thinking much more than it is a body of knowledge.
Carl Edward Sagan
#American Scientist #Body

Carl Edward Sagan
We have swept through all of the planets in the solar system, from Mercury to Neptune, in a historic 20 (to) 30 year age of spacecraft discovery,
Carl Edward Sagan
#Historic

Carl Edward Sagan
When Kepler found his long-cherished belief did not agree with the most precise observation, he accepted the uncomfortable fact. He preferred the hard truth to his dearest illusions; that is the heart of science.
Carl Edward Sagan
#Belief

Carl Edward Sagan
The universe is not required to be in perfect harmony with human ambition.
Carl Edward Sagan
#American Scientist #Ambition

Carl Edward Sagan
It is of interest to note that while some dolphins are reported to have learned English - up to fifty words used in correct context - no human being has been reported to have learned dolphinese.
Carl Edward Sagan
#Animals