If you wish to make an apple pie from scratch, you must first invent the universe.
CARL SAGANEvery one of us is, in the cosmic perspective, precious. If a human disagrees with you, let him live. In a hundred billion galaxies, you will not find another.
More Carl Sagan Quotes
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The nitrogen in our DNA, the calcium in our teeth, the iron in our blood, the carbon in our apple pies were made in the interiors of collapsing stars. We are made of starstuff.
CARL SAGAN -
Human beings have a demonstrated talent for self-deception when their emotions are stirred.
CARL SAGAN -
Any faith that admires truth, that strives to know God, must be brave enough to accommodate the universe.
CARL SAGAN -
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 -
If we ruin the earth, there is no place else to go.
CARL SAGAN -
The universe is not required to be in perfect harmony with human ambition.
CARL SAGAN -
You are worth about 3 dollars worth in chemicals.
CARL SAGAN -
Across the sea of space, the stars are other suns.
CARL SAGAN -
And you are made of a hundred trillion cells. We are, each of us, a multitude.
CARL SAGAN -
Imagination will often carry us to worlds that never were, but without it we go nowhere.
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 -
I consider it an extremely dangerous doctrine, because the more likely we are to assume that the solution comes from the outside, the less likely we are to solve our problems ourselves.
CARL SAGAN -
There are no forbidden questions in science, no matters too sensitive or delicate to be probed, no sacred truths.
CARL SAGAN -
Except in pure mathematics, nothing is known for certain (although much is certainly false).
CARL SAGAN -
Science is not only compatible with spirituality; it is a profound source of spirituality.
CARL SAGAN