Extraordinary claims require extraordinary evidence. - Carl Sagan

"You could just as well say that an agnostic is a deeply religious person with at least a rudimentary knowledge of human fallibility."

"The nuclear arms race is like two sworn enemies standing waist deep in gasoline, one with three matches, the other with five."

"The cosmos is within us. We are made of star-stuff. We are a way for the universe to know itself."

"Extraordinary claims require extraordinary evidence."

"We are star stuff harvesting sunlight."