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.

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.

People think that if you are a scientist you have to give up that joy of discovery, that passion, that sense of the great romance of life. I say thats completely opposite of the truth.

You were sizzling, like sausages in a frying pan.

Obviously for some people there is a big connection between music and the way you can create a space.

The religious superstitions of women perpetuate their bondage more than all other adverse influences.

The two powers which in my opinion constitute a wise man are those of bearing and forbearing.

We can't live other people's lives for them. Even if we love them.

Make joy and happiness the center of your world.

But sometimes the future is latent in us without our knowing it, and our supposedly lying words foreshadow an imminent reality.

The primary reason in starting a business part-time is not so much to make a product great. The real reason for starting a part-time business is to make you a great businessperson.

You cannot teach a bird to fly, only how to let go his branch and begin to fall.

Writing has to support itself.