Nature is unsentimental. Death is built in.
CARL SAGANThe Earth is the only world known so far to harbor life.
More Carl Sagan Quotes
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If I finish a book a week, I will read only a few thousand books in my lifetime, about a tenth of a percent of the contents of the greatest libraries of our time. The trick is to know which books to read.
CARL SAGAN -
Perhaps the depth of love can be calibrated by the number of different selves that are actively involved in a given relationship.
CARL SAGAN -
Science is a way of thinking much more than it is a body of knowledge.
CARL SAGAN -
The brain is like a muscle. When it is in use we feel very good. Understanding is joyous.
CARL SAGAN -
What an astonishing thing a book is.
CARL SAGAN -
The absence of evidence is not evidence of absence.
CARL SAGAN -
Books permit us to voyage through time, to tap the wisdom of our ancestors.
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 -
The truth may be puzzling. It may take some work to grapple with. It may be counterintuitive. It may contradict deeply held prejudices. It may not be consonant with what we desperately want to be true. But our preferences do not determine what’s true.
CARL SAGAN -
Your god is too small for my universe.
CARL SAGAN -
Stars are phoenixes, rising from their own ashes.
CARL SAGAN -
Nothing disturbs me more than the glorification of stupidity.
CARL SAGAN -
We all have a thirst for wonder. It’s a deeply human quality. Science and religion are both bound up with it.
CARL SAGAN -
There are no forbidden questions in science, no matters too sensitive or delicate to be probed, no sacred truths.
CARL SAGAN -
We are a way for the cosmos to know itself.
CARL SAGAN







