You have to know the past to understand the present.
CARL SAGANA galaxy is composed of gas and dust and stars – billions upon billions of stars. Every star may be a sun to someone.
More Carl Sagan Quotes
-
-
Understanding is a kind of ecstasy.
CARL SAGAN -
The only thing we’ve found that makes the emptiness bearable, is each other.
CARL SAGAN -
Knowing a great deal is not the same as being smart; intelligence is not information alone but also judgement, the manner in which information is coordinated and used.
CARL SAGAN -
If we ruin the earth, there is no place else to go.
CARL SAGAN -
People are not stupid. They believe things for reasons.
CARL SAGAN -
Writing is the greatest of human inventions, binding together people, citizens of distant epochs, who never knew one another.
CARL SAGAN -
The brain is like a muscle. When it is in use we feel very good. Understanding is joyous.
CARL SAGAN -
Except in pure mathematics, nothing is known for certain (although much is certainly false).
CARL SAGAN -
One of the greatest gifts adults can give – to their offspring and to their society – is to read to children.
CARL SAGAN -
I think the health of our civilization, the depth of our awareness about the underpinnings of our culture and our concern for the future can all be tested by how well we support our libraries.
CARL SAGAN -
Books are like seeds. They can lie dormant for centuries and then flower in the most unpromising soil.
CARL SAGAN -
There are as many atoms in one molecule of DNA as there are stars in a typical galaxy.
CARL SAGAN -
We can judge our progress by the courage of our questions and the depth of our answers, our willingness to embrace what is true rather than what feels good.
CARL SAGAN -
Arguments from authority carry little weight, authorities have made mistakes in the past. They will do so again in the future. Perhaps a better way to say it is that in science there are no authorities; at most, there are experts.
CARL SAGAN -
We live on a mote of dust suspended in a sunbeam.
CARL SAGAN