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“Every atom in your body came from a star that exploded. And, the atoms in your left hand probably came from a different star than your right hand. It really is the most poetic thing I know about physics: You are all stardust. You couldn’t be here if stars hadn’t exploded, because the elements - the carbon, nitrogen, oxygen, iron, all the things that matter for evolution and for life - weren’t created at the beginning of time. They were created in the nuclear furnaces of stars, and the only way for them to get into your body is if those stars were kind enough to explode. So, forget Jesus. The stars died so that you could be here today.”
― Lawrence M. Krauss

“Any sufficiently advanced technology is indistinguishable from magic.”
― Arthur C. Clarke, Profiles of the Future: An Inquiry into the Limits of the Possible

“The fact that we live at the bottom of a deep gravity well, on the surface of a gas covered planet going around a nuclear fireball 90 million miles away and think this to be normal is obviously some indication of how skewed our perspective tends to be.”
― Douglas Adams, The Salmon of Doubt: Hitchhiking the Galaxy One Last Time

“That which can be asserted without evidence, can be dismissed without evidence.”
― Christopher Hitchens

“The good thing about science is that it's true whether or not you believe in it.”
― Neil deGrasse Tyson

“Nothing in life is to be feared, it is only to be understood. Now is the time to understand more, so that we may fear less.”
― Marie Curie

“In my opinion, we don't devote nearly enough scientific research to finding a cure for jerks.”
― Bill Watterson

“For me, it is far better to grasp the Universe as it really is than to persist in delusion, however satisfying and reassuring.”
― Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

“Extraordinary claims require extraordinary evidence.”
― Carl Sagan

“If you try and take a cat apart to see how it works, the first thing you have on your hands is a non-working cat.”
― Douglas Adams

“I don't accept the currently fashionable assertion that any view is automatically as worthy of respect as any equal and opposite view. My view is that the moon is made of rock. If someone says to me 'Well, you haven't been there, have you? You haven't seen it for yourself, so my view that it is made of Norwegian Beaver Cheese is equally valid' - then I can't even be bothered to argue. There is such a thing as the burden of proof, and in the case of god, as in the case of the composition of the moon, this has shifted radically. God used to be the best explanation we'd got, and we've now got vastly better ones. God is no longer an explanation of anything, but has instead become something that would itself need an insurmountable amount of explaining. So I don't think that being convinced that there is no god is as irrational or arrogant a point of view as belief that there is. I don't think the matter calls for even-handedness at all.”
― Douglas Adams

“The scientist is not a person who gives the right answers, he's one who asks the right questions.”
― Claude Levi-Strauss

“We can judge our progress by the courage of our questions and the depth of our answers, our willingness to embrace what is true rather than what feels good.”
― Carl Sagan

“Science, my lad, is made up of mistakes, but they are mistakes which it is useful to make, because they lead little by little to the truth.”
― Jules Verne, A Journey to the Center of the Earth

“Your assumptions are your windows on the world. Scrub them off every once in a while, or the light won't come in.”
― Alan Alda

“Ignorance more frequently begets confidence than does knowledge: it is those who know little, not those who know much, who so positively assert that this or that problem will never be solved by science.”
― Charles Darwin, The Descent of Man

“The more I learn about the universe, the less convinced I am that there's any sort of benevolent force that has anything to do with it, at all.”
― Neil deGrasse Tyson

“[E]xceptional claims demand exceptional evidence.”
― Christopher Hitchens, God Is Not Great: How Religion Poisons Everything

“I consider it an extremely dangerous doctrine, because the more likely we are to assume that the solution comes from the outside, the less likely we are to solve our problems ourselves.”
― Carl Sagan

“[In the Universe it may be that] Primitive life is very common and intelligent life is fairly rare. Some would say it has yet to occur on Earth.”
― Stephen W. Hawking

“I don't want to believe. I want to know.”
― Carl Sagan

“Imagine the people who believe such things and who are not ashamed to ignore, totally, all the patient findings of thinking minds through all the centuries since the Bible was written. And it is these ignorant people, the most uneducated, the most unimaginative, the most unthinking among us, who would make themselves the guides and leaders of us all; who would force their feeble and childish beliefs on us; who would invade our schools and libraries and homes. I personally resent it bitterly.”
― Isaac Asimov, The Roving Mind

“A reliable way to make people believe in falsehoods is frequent repetition, because familiarity is not easily distinguished from truth. Authoritarian institutions and marketers have always known this fact.”
― Daniel Kahneman, Thinking, Fast and Slow

“It's been suggested that if the super-naturalists really had the powers they claim, they'd win the lottery every week. I prefer to point out that they could also win a Nobel Prize for discovering fundamental physical forces hitherto unknown to science. Either way, why are they wasting their talents doing party turns on television?

By all means let's be open-minded, but not so open-minded that our brains drop out.”
― Richard Dawkins

“Now, the invention of the scientific method and science is, I'm sure we'll all agree, the most powerful intellectual idea, the most powerful framework for thinking and investigating and understanding and challenging the world around us that there is, and that it rests on the premise that any idea is there to be attacked and if it withstands the attack then it lives to fight another day and if it doesn't withstand the attack then down it goes. Religion doesn't seem to work like that; it has certain ideas at the heart of it which we call sacred or holy or whatever. That's an idea we're so familiar with, whether we subscribe to it or not, that it's kind of odd to think what it actually means, because really what it means is 'Here is an idea or a notion that you're not allowed to say anything bad about; you're just not. Why not? - because you're not!”
― Douglas Adams

“A foolish faith in authority is the worst enemy of truth.”
― Albert Einstein

“Science is the great antidote to the poison of enthusiasm and superstition.”
― Adam Smith, An Inquiry into the Nature and Causes of the Wealth of Nations

“You cannot reason people out of a position that they did not reason themselves into.”
― Ben Goldacre, Bad Science

“It is harder to crack prejudice than an atom.”
― Albert Einstein

“No amount of experimentation can ever prove me right; a single experiment can prove me wrong.”
― Albert Einstein