Science is a way to not fool ourselves.
Carl SaganRead
By looking far out into space we are also looking far back into time, back toward the horizon of the universe, back toward the epoch of the Big Bang.
Interpretation
Exploring space helps us understand the history of the universe and our place within it.
In this quote, Carl Sagan highlights the profound relationship between space and time. By observing distant celestial objects, we are not only witnessing their current state but also looking back in time to the very origins of the universe, such as the Big Bang. This perspective emphasizes the interconnectedness of time, space, and our understanding of cosmic events.
In practice
In a lecture about astrophysics, to explain the relationship between the universe and time.
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.
A doctor can save maybe a few hundred lives in a lifetime. A researcher can save the whole world.
Physics is the only profession in which prophecy is not only accurate but routine.
The upshot of all this is that we live in a universe whose age we can't quite compute, surrounded by stars whose distances we don't altogether know, filled with matter we can't identify, operating in conformance with physical laws whose properties we donβt truly understand.
All models are wrong, and increasingly you can succeed without them.
If the history-deniers who doubt the fact of evolution are ignorant of biology, those who think the world began less than ten thousand years ago are worst than ignorant, they are the deluded to the point of perversity.
If you aren't confused by quantum mechanics, you haven't really understood it.
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