Carl Sagan

One glance at a book and you hear the voice of another person, perhaps someone dead for 1,000 years. To read is to voyage through time.

Carl Sagan

One of the great commandments of science is: ‘Mistrust arguments from authority.’

Carl Sagan

One of the greatest gifts adults can give – to their offspring and to their society – is to read to children.

Carl Sagan

Other things being equal, it is better to be smart than to be stupid.

Carl Sagan

Our 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

Our ancestors worshipped the Sun, and they were not that foolish. It makes sense to revere the Sun and the stars, for we are their children.

Carl Sagan

Our children long for realistic maps of the future that they can be proud of. Where are the cartographers of human purpose?

Carl Sagan

Our planet is a lonely speck in the great enveloping cosmic dark. In our obscurity, in all this vastness, there is no hint that help will come from elsewhere to save us from ourselves.

Carl Sagan

Our posturings, our imagined self-importance , the delusion that we have some privileged position in the universe are challenged by this point of pale light.

Carl Sagan

Our posturings, our imagined self-importance, the delusion that we have some privileged position in the universe, are challenged by this point of pale light. Our planet is a lonely speck in the great enveloping cosmic dark.

Carl Sagan