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 Sagan quote HD Wallpaper

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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 Sagan)

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The total number of stars in the Universe is larger than all the grains of sand on all the beaches of the planet Earth. | Carl Sagan quote

I’m only a four-dimensional creature. Haven’t got a clue how to visualise infinity. Even Einstein hadn’t. I know because I asked him. | Carl Sagan quote

The only situation a commander can know fully is his own: his opponent’s he can know only from unreliable intelligence. | Carl von Clausewitz quote

When we look up at night and view the stars, everything we see is shinning because of distant nuclear fusion. | Carl Sagan quote

Not all birds can fly. What separates the flyers from the walkers is the ability to take off. | Carl Sagan quote

The words “question” and “quest” are cognates. Only through inquiry can we discover truth. | Carl Sagan quote

You have to know the past to understand the present. | Carl Sagan quote

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 Sagan quote HD Wallpaper

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