More quotes by Carl Sagan

"I don't want to believe. I want to know."
"The nuclear arms race is like two sworn enemies standing waist deep in gasoline, one with three matches, the other with five."
"A new consciousness is developing which sees the earth as a single organism and recognizes that an organism at war with itself is doomed. We are one planet. One of the great revelations of the age of space exploration is the image of the earth finite and lonely, somehow vulnerable, bearing the entire human species through the oceans of space and time."
"If it can be destroyed by the truth, it deserves to be destroyed by the truth."
"You can get into a habit of thought in which you enjoy making fun of all those other people who don't see things as clearly as you do. We have to guard carefully against it."