The greatest thing that science teaches you is the law of unintended consequences.

Ten long trips around the sun since I last saw that smile, but only joy and thankfulness that on a tiny world in the vastness, for a couple of moments in the immensity of time, we were one.

A lot of people have this ego need that makes them want to believe that Earth is the center of the universe and humans are the most important species, the supreme expression of creation.

If you are searching for sacred knowledge and not just a palliative for your fears, then you will train yourself to be a good skeptic.

And what greater might do we possess as human beings than our capacity to question and to learn?

Carl did not want to believe. He wanted to know.

I guess I so desperately want to see us put this planet right. It's so horrifying to me that a fifth of us are starving every night, and that forty thousand children die every single day.

We smoked the way other American families would have wine with dinner. For us, it was our sacrament. It was something that made a great life sweeter in every possible way.

Interviewer: "Didn't [Sagan] want to believe?" Druyan: "He didn't want to believe. He wanted to know.

Science is nothing more than a neverending search for the truth.

Carl took on the military-industrial complex. He campaigned around the world for an end to the production of weapons of mass destruction. To him it was a perversion of science.

Adversities are the best teacher and challenges are the best motivator.

Be you never so high the law is above you.

I haven't found a comfortable place onstage. I'm sure it doesn't have to be comfortable, but I'm very nervous, so I don't enjoy myself.

Songs need to have a secret, cryptic, thematic thing about them, otherwise they are just messy and all over the place.

Playing music is the best thing in the world. It makes show business almost bearable.

The intellectual evolution of the race consists in an increase in the number, delicacy, complexity, permanence and speed of formation of such associations.

Your home is that thing to which you can dedicate your energies with such singular devotion that the ultimate results become inconsequential.

Acting, at least for me, is very unreal, and when I'm doing it, I actually feel embarrassed.

...is the spirit of the people an infallible, a permanent reliance? ...the spirit of the times may alter, will alter. Our rulers will become corrupt, our people careless.

When you speak of role models, when we talk to our kids, everybody is a role model, everyone, just as you look at a Michael Jordan to be the terrific athlete he is.