Carl Sagan: If you wish to make an apple pie from scratch, you must first invent the universe.
Carl Sagan: Every 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.
Carl Sagan: Somewhere, something incredible is waiting to be known.
Carl Sagan: In all our searching, the only thing we've found that makes the emptiness bearable is each other.
Carl Sagan: For small creatures such as we the vastness is bearable only through love.
Carl Sagan: The sky calls to us. If we do not destroy ourselves, we will one day venture to the stars.
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: It pays to keep an open mind, but not so open your brains fall out.
Carl Sagan: Across the sea of space, the stars are other suns.
Carl Sagan: We are a way for the cosmos to know itself.
Carl Sagan: We are like butterflies who flutter for a day and think it is forever.
Carl Sagan: We are star stuff which has taken its destiny into its own hands.
Carl Sagan: The universe seems neither benign nor hostile, merely indifferent.
Carl Sagan: The universe is a pretty big place. If it's just us, seems like an awful waste of space.
Carl Sagan: You are made of a hundred trillion cells. We are, each of us, a multitude.
Carl Sagan: I don't want to believe. I want to know.
Carl Sagan: Imagination will often carry us to worlds that never were, but without it we go nowhere.
Carl Sagan: The cosmos is within us. We are made of star-stuff. We are a way for the universe to know itself.
Carl Sagan: We find that we live on an insignificant planet of a humdrum star lost in a galaxy tucked away in some forgotten corner of a universe in which there are far more galaxies than people.
Carl Sagan: 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.
