Dr. Carl Sagan Quotes

Who will speak for Planet Earth? - Dr. Carl Sagan

Who are we? Where do we come from? Why are we this way and not some other? What does it mean to be human? Are we capable, if need be, of fundamental change, or do the dead hands of forgotten ancestors impel us in some direction, indiscriminately for good or ill, and beyond our control? Can we alter our character? Can we improve our societies? Can we leave our children a world better than the one that was left to us? Can we free them from the demons that torment us and haunt our civilization? In the long run, are we wise enough to know what changes to make? Can we be trusted with our own future? - Dr. Carl Sagan

Who are we? 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. - Dr. Carl Sagan

When you make the finding yourself - even if you're the last person on Earth to see the light - you never forget it. - Dr. Carl Sagan

We've arranged a civilization in which most crucial elements profoundly depend on science and technology. - Dr. Carl Sagan

We live in a society exquisitely dependent on science and technology, in which hardly anyone knows anything about science and technology. - Dr. Carl Sagan

We are the product of 4.5 billion years of fortuitous, slow biological evolution. There is no reason to think that the evolutionary process has stopped. Man is a transitional animal. He is not the climax of creation. - Dr. Carl Sagan

We are star-stuff. - Dr. Carl Sagan

We are prodding, challenging, seeking contradictions or small, persistent residual errors, proposing alternative explanations, encouraging heresy. We give our highest rewards to those who convincingly disprove established beliefs. - Dr. Carl Sagan

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