If our long-term survival is at stake, we have a basic responsibility to our species to venture to other worlds. Sailors on a becalmed sea, we sense the stirring of a breeze.

There is in this Universe much of what seems to be design.

The universe forces those who live in it to understand it.

How lucky we are to live in this time / the first moment in human history / when we are in fact visiting other worlds

I'd like the [Cosmos] series to be so visually stimulating that somebody who isn't even interested in the concepts will just watch for the effects. And I'd like people who are prepared to do some thinking to be really stimulated.

I also wish that the Pledge of Allegiance were directed at the Constitution and the Bill of Rights, as it is when the President takes his oath of office, rather than to the flag and the nation

Absolute certainty will always elude us. We will always be mired in error. The most each generation can hope for is to reduce the error. . . .