Carl Sagan Sayings and Quotes

Below you will find our collection of inspirational, wise, and humorous old carl sagan quotes, carl sagan sayings, and carl sagan proverbs, collected over the years from a variety of sources.


Every time you look up at the sky, every one of those points of light is a reminder that fusion power is extractable from hydrogen and other light elements, and it is an everyday reality throughout the Milky Way Galaxy.     

Carl Sagan

We live on a hunk of rock and metal that circles a humdrum star that is one of 400 billion other stars that make up the Milky Way Galaxy which is one of billions of other galaxies which make up a universe which may be one of a very large number, perhaps an infinite number, of other universes. That is a perspective on human life and our culture that is well worth pondering.     

Carl Sagan

The Milky Way Galaxy is one of billions, perhaps hundreds of billions of galaxies notable neither in mass nor in brightness nor in how its stars are configured and arrayed. Some modern deep sky photographs show more galaxies beyond the Milky Way than stars within the Milky Way. Every one of them is an island universe containing perhaps a hundred billion suns. Such an image is a profound sermon on humility.     

Carl Sagan

The first two letters of the name Pluto are the initials of Percival Lowell. Its symbol Is , a planetary monogram. But Lowell's llfelong love was the planet Mars. He was electrified by the announcement in 1877 by an Italian astronomer, Giovanni Schiaparelli, of canali on Mars.     

Carl Sagan

There is nothing inhuman about an intelligent machine; it is indeed an expression of those superb intellectual capabilities that only human beings, of all the creatures on our planet, now possess     

Carl Sagan

Extinction is the rule. Survival is the exception.     

Carl Sagan

With insufficient data it is easy to go wrong.     

Carl Sagan

The trapdoor beneath our feet swings open. We find ourselves in bottomless free fall. We are lost in a great darkness, and there's no one to send out a search party. Given so harsh a reality, of course we're tempted to shut our eyes and pretend that we're safe and snug at home, that the fall is only a bad dream.      

Carl 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 Sagan

We are like butterflies who flutter for a day and think it is forever.      

Carl Sagan

Cleverly designed experiments are the key.     

Carl Sagan

In all our searching, the only thing we've found that makes the emptiness bearable is each other.     

Carl Sagan

The illegality of cannabis is outrageous, an impediment to full utilization of a drug which helps produce the serenity and insight, sensitivity and fellowship, so desperately needed in this increasingly mad and dangerous world.     

Carl Sagan