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

All of science to me, everything that we have learned, is important to the extent that it brings us to our senses.

The Universe revealed by science is one of far more awesome grandeur than any religion has ever posited.

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

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.

This planet seems to be in such sorry shape. And I can't ever think about the rest of the universe without coming back home and thinking what the implications for life here would be if we were to really have some definitive proof of extraterrestrial life.

The only gratification that science denies to us is deception.