Carl Sagan was an American astronomer, who was also a leading figure in other branches of science like cosmology, astrophysics and astrobiology. Sagan is most famous for popularizing science among the general people through his books. His most important and perhaps most significant work is the research that he carried out on extraterrestrial life and that is something that remains one of the top priorities of space research organisations even today. Sagan was a prolific researcher who produced hundreds of research papers throughout a stellar career that spanned over a period of more than three decades. In addition to that, he had also written several popular science based books among which ‘Pale Blue Dot’ and ‘The Dragons of Eden’ are the most famous ones. Sagan was also the co-writer of the hugely popular show ‘Cosmos: A Personal Voyage’ that went on to win several awards. As one would ex-pect, Sagan has also left behind a rich haul of quotes that would appeal to curious minds of all ages, irrespective of their aptitude for the sciences and here are some of the choices ones.