Books break the shackles of time ― proof that humans can work magic. Writing is perhaps the greatest of human inventions, binding together people, citizens of distant epochs, who never knew one another.

Across the millennia, the author is speaking, clearly and silently, inside your head, directly to you. One glance at it and you hear the voice of another person, perhaps someone dead for thousands of years.

It is an assemblage of flat, flexible parts (still called “leaves”) imprinted with dark pigmented squiggles. Sagan argued the now accepted hypothesis that the high surface temperatures of Venus can be attributed to and calculated using the greenhouse effect.Ī book is made from a tree. Sagan assembled the first physical messages sent into space: the Pioneer plaque and the Voyager Golden Record, universal messages that could potentially be understood by any extraterrestrial intelligence that might find them. His best known scientific contribution is research on extraterrestrial life, including experimental demonstration of the production of amino acids from basic chemicals by radiation. He is best known as a science popularizer and communicator. Please DO page find from your browser for your subject SEARCH.Ĭarl Edward Sagan (Novem– December 20, 1996) was an American astronomer, cosmologist, astrophysicist, astrobiologist, author, science popularizer, and science communicator in astronomy and other natural sciences. Who knows-success could be just around the corner. May these Carl Sagan quotes on many subjects inspire you to never give up and keep working towards your goals. Enjoy reading these insights and feel free to share this page on your social media to inspire others. We have collected and put the best Carl Sagan quotesin the following categories. The Varieties of Scientific Experience: A Personal View of the Search for God (2006).Billions and Billions: Thoughts on Life and Death at the Brink of the Millenium (1997).The Demon-Haunted World : Science as a Candle in the Dark (1995).Pale Blue Dot: A Vision of the Human Future in Space (1994).Cosmos: A Personal Voyage (1990 Update).

Carl sagan earth quote