Carl Sagan

Extraordinary claims require extraordinary evidence.

Isaac Asimov

I believe in evidence. I believe in observation, measurement, and reasoning, confirmed by independent observers. I'll believe anything, no matter how wild and ridiculous, if there is evidence for it. The wilder and more ridiculous something is, however, the firmer and more solid the evidence will have to be.

"Extraordinary claims require extraordinary evidence." ~ Carl Sagan

Ulysses S. Grant

If we are to have another contest in the near future of our national existence I predict that the dividing line will not be Mason & Dixon … but between patriotism & intelligence on the one side & superstition, ambition & ignorance on the other.

Grant could see it.

Carl Sagan

Science is more than a body of knowledge; it is a way of thinking. I have a foreboding of an America in my children’s or grandchildren’s time — when the United States is a service and information economy; when nearly all the key manufacturing industries have slipped away to other countries; when awesome technological powers are in the hands of a very few, and no one representing the public interest can even grasp the issues; when the people have lost the ability to set their own agendas or knowledgeably question those in authority; when, clutching our crystals and nervously consulting our horoscopes, our critical faculties in decline, unable to distinguish between what feels good and what’s true, we slide, almost without noticing, back into superstition and darkness.