jueves, 8 de noviembre de 2012

Absence of evidence is not evidence of absence.



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
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

I maintain there is much more wonder in science than in pseudoscience. And in addition, to whatever measure this term has any meaning, science has the additional virtue, and it is not an inconsiderable one, of being true.

Carl Sagan

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
If you want to make an apple pie from scratch, you must first create the universe.

Carl Sagan
In every country, we should be teaching our children the scientific method and the reasons for a Bill of Rights. With it comes a certain decency, humility and community spirit. In the demon-haunted world that we inhabit by virtue of being human, this may be all that stands between us and the enveloping darkness.

Carl 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 Sagan
One glance at a book and you hear the voice of another person, perhaps someone dead for 1,000 years. To read is to voyage through time.

Carl Sagan
Science is not only compatible with spirituality; it is a profound source of spirituality.

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

Carl Sagan
The universe is not required to be in perfect harmony with human ambition.
Carl Sagan
We live in a society exquisitely dependent on science and technology, in which hardly anyone knows anything about science and technology.

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
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
A celibate clergy is an especially good idea, because it tends to suppress any hereditary propensity toward fanaticism.
Carl Sagan"Contact"
In science it often happens that scientists say, 'You know that's a really good argument; my position is mistaken,' and then they would actually change their minds and you never hear that old view from them again. They really do it. It doesn't happen as often as it should, because scientists are human and change is sometimes painful. But it happens every day. I cannot recall the last time someting like that happened in politics or religion.
Carl Sagan1987 CSICOP Keynote Address
Where we have strong emotions, we're liable to fool ourselves.
Carl SaganCosmos (Blues for a Red Planet)


Absence of evidence is not evidence of absence.

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Learn languages by reading newspapers and magazines

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