Quotes by : Carl Sagan

This sort of information gathering is precisely what we call play. And the important function of play....

n every culture, the sky and the religious impulse are intertwined. I lie back in an open field and the....

Meanwhile the Cosmos is rich beyond measure: the total number of stars in the universe is greater than....

The time scale for evolutionary or genetic change is very long. A characteristic period for the emergence....

There are no forbidden questions in science, no matters to sensitive or delicate to be probed, no sacred....

At the very moment that humans discovered the scale of the universe and found that their most unconstrained....

In the vastness of space and the immensity of time, it is my joy to share a planet and an epoch with....

Look again at that dot. That's here. That's home. That's us. On it everyone you love, everyone you know,....

Those at too great a distance may, I am well are, mistake ignorance for perspective.

I consider it an extremely dangerous doctrine, because the more likely we are to assume that the solution....