He sought a way to preserve the past. John Hershel was one of the founders of a new form of time travel.... a means to capture light and memories. He actually coined a word for it... photography. When you think about it, photography is a form of time travel. This man is staring at us from across the centuries, a ghost preserved by light.
Carl SaganThe difference between physics and metaphysics is not that the practitioners of one are smarter than the practitioners of the other. The difference is that the metaphysicist has no laboratory.
Carl SaganIn the vastness of space and the immensity of time, it is my joy to share a planet and an epoch with Annie.
Carl SaganArguments from authority carry little weight – authorities have made mistakes in the past. They will do so again in the future. Perhaps a better way to say it is that in science there are no authorities; at most, there are experts.
Carl SaganI would be very ashamed of my civilization if we did not try to find out if there is life in outer space.
Carl Sagan