Carl Sagan

As the ancient myth makers knew, we are children equally of the earth and the sky.

Carl Sagan

Atoms are mainly empty space. Matter is composed chiefly of nothing.

Carl Sagan

Avoidable human misery is more often caused not so much by stupidity as by ignorance, particularly our ignorance about ourselves.

Carl Sagan

Books are key to understanding the world and participating in a democratic society.

Carl Sagan

But I try not to think with my gut. If I’m serious about understanding the world, thinking with anything besides my brain, as tempting as that might be, is likely to get me into trouble.

Carl Sagan

But nature is always more subtle, more intricate, more elegant than what we are able to imagine.

Carl Sagan

Even after 400 generations in villages and cities, we haven’t forgotten. The open road still softly calls, like a nearly forgotten song of childhood.

Carl Sagan

Even these stars, which seem so numerous, are as sand, as dust – or less than dust – in the enormity of the space in which there is nothing.

Carl Sagan

Every kid starts out as a natural-born scientist, and then we beat it out of them. A few trickle through the system with their wonder and enthusiasm for science intact.

Carl Sagan

Every thinking person fears nuclear war, and every technological state plans for it. Everyone knows it is madness, and every nation has an excuse.

Carl Sagan