Think of how many religions attempt to validate themselves with prophecy. Think of how many people rely on these prophecies, however vague, however unfulfilled, to support or prop up their beliefs. Yet has there ever been a religion with the prophetic accuracy and reliability of science? ... No other human institution comes close.
Carl SaganOur ancestors lived out of doors. They were as familiar with the night sky as most of us are with our favorite television programs.
Carl Sagan