Science is a way to not fool ourselves.
Carl SaganRead
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.
Interpretation
Clear thinking is more important now than ever due to the dangers of misinformation.
In today's world, the consequences of unclear or confused thinking can lead to significant harm, given the overwhelming amount of information and misinformation we encounter. Carl Sagan emphasizes that while human thinking hasn't fundamentally changed, the impact of our misconceptions and naivety is increasingly dangerous because of the digital age's ability to spread falsehoods rapidly and widely.
In practice
In a speech about the importance of critical thinking in education.
Science is a way to not fool ourselves.
In more than one respect, the exploring of the Solar System and homesteading other worlds constitutes the beginning, much more than the end, of history.
How smart does a chimpanzee have to be before killing him constitutes murder?
The hole in the ozone layer is a kind of skywriting. At first it seemed to spell out our continuing complacency before a witch's brew of deadly perils. But perhaps it really tells of a newfound talent to work together to protect the global environment.
There is a reward structure in science that is very interesting: Our highest honors go to those who disprove the findings of the most revered among us. So Einstein is revered not just because he made so many fundamental contributions to science, but because he found an imperfection in the fundamental contribution of Isaac Newton.
The simplest thought, like the concept of the number one, has an elaborate logical underpinning.
In all ages the people have honored those who dishonored them. They have worshiped their destroyers; they have canonized the most gigantic liars, and buried the great thieves in marble and gold. Under the loftiest monuments sleeps the dust of murder.
Nature gives you the face you have at twenty; it is up to you to merit the face you have at fifty.
I may not agree with what you have to say but I will fight you to the death for the right to fight you to the death.
The laws of nature are the rules according to which the effects are produced; but there must be a cause which operates according to these rules. The laws of navigation never navigated a ship. The rules of architecture never built a house.
You've got to learn to accept the law of life, and face the fact that we disintegrate slowly.
The Fondness we have for Self, and the Relation which other Persons and Things have to ourselves, furnish us with another long Rank of Prejudices.
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