First Quote Added
April 10, 2026
Latest Quote Added
"As long as you can Houdini your way out of the Sisyphean constraints then originality happens."
"A surprising proportion of mathematicians are accomplished musicians. Is it because music and mathematics share patterns that are beautiful?"
"I can say this. I believe that the human mind, or even the mind of a cat, is more interesting in its complexity than an entire galaxy if it is devoid of life."
"Mathematical magic combines the beauty of mathematical structure with the entertainment value of a trick."
"The last level of metaphor in the Alice books is this: that life, viewed rationally and without illusion, appears to be a nonsense tale told by an idiot mathematician. At the heart of things science finds only a mad, never-ending quadrille of Mock Turtle Waves and Gryphon Particles. For a moment the waves and particles dance in grotesque, inconceivably complex patterns capable of reflecting on their own absurdity."
"There are, and always have been, destructive pseudo-scientific notions linked to race and religion; these are the most widespread and damaging. Hopefully, educated people can succeed in shedding light into these areas of prejudice and ignorance, for as Voltaire once said: "Men will commit atrocities as long as they believe absurdities.""
"In many cases a dull proof can be supplemented by a geometric analogue so simple and beautiful that the truth of a theorem is almost seen at a glance."
"Biographical history, as taught in our public schools, is still largely a history of boneheads: ridiculous kings and queens, paranoid political leaders, compulsive voyagers, ignorant generals — the flotsam and jetsam of historical currents. The men who radically altered history, the great scientists and mathematicians, are seldom mentioned, if at all."
"I've never made a discovery myself, unless by accident. If you write glibly, you fool people. When I first met Asimov, I asked him if he was a professor at Boston University. He said no and … asked me where I got my Ph.D. I said I didn't have one and he looked startled. "You mean you're in the same racket I am," he said, "you just read books by the professors and rewrite them?" That's really what I do."
"There is still a difference between something and nothing, but it is purely geometrical and there is nothing behind the geometry."
"Ever since I was a boy, I've been fascinated by crazy science and such things as perpetual motion machines and logical paradoxes. I've always enjoyed keeping up with those ideas. I suppose I didn't get into it seriously until I wrote my first book, Fads and Fallacies in the Name of Science. I was influenced by the Dianetics movement, now called Scientology, which was then promoted by John Campbell in Astounding Science Fiction. I was astonished at how rapidly the thing had become a cult."
"As I have often said, electrons and gerbils don't cheat. People do."
"The greatest scandal of the century in American psychiatry … is the growing mania among thousands of inept therapists, family counselors, and social workers for arousing false memories of childhoood sexual abuse."
"Although Lewis Carroll thought of The Hunting of the Snark as a nonsense ballad for children, it is hard to imagine—in fact one shudders to imagine—a child of today reading and enjoying it."
"Uri Geller may have psychic powers by means of which he can bend spoons; if so, he appears to be doing it the hard way."
"… it's time for the opening lecture in Test Design 101: Consider: a woman claims to be a musician. You seat her at a piano and demand that she prove her claim. She cannot play the piano, and you conclude that her claim has been invalidated. Hardly. You see, the lady is a cellist…. You cannot challenge a claimant to do something they've never claimed they can do. That's why, at the JREF, we design a protocol only after the applicant has clearly stated (a) what they can do, (b) under what conditions, and (c) with what expected degree of success. And, the applicant must find the protocol appropriate, fair, agreeable, and adequate to prove their claim."
"I suggest that we might want to depose this incumbent God and start dealing with The Real World. He's proven — time and again — to be cruel, capricious, and vindictive. He drowns, crushes, burns, and starves millions of us every day. He created cancer, viruses, and germs to invade and destroy our bodies as He sees fit, and uses them very effectively. In His wisdom, He directed those in charge to impede stem cell research so that such a powerful approach would not be available to us and He wouldn't have to strain the Divine Intellect to disarm that defense. We amuse Him as we flail about vainly trying to appease Him. I vote that we dump Him."
"Atheism is a religion like not collecting stamps is a hobby."
"Everyone who believes in telekinesis, raise my hand."
"I found Randi likable and plausible; the only thing that bothered me was the sweeping and intense nature of his skepticism. He was obviously working from the premise that all paranormal phenomena, without exception, are fakes or delusions. He seemed to take it for granted that all of us — there were also two women present — shared his opinions, and he made jovial, disparaging remarks about psychics and other such weirdos. I began to get the uncomfortable feeling of a Jew who has accidentally walked into a Nazi meeting, or a Jehovah's Witness at a convention of militant atheists. As a supposedly scientific psychic investigator, Randi struck me as being oddly fixed in his opinions."
"We may disagree with Randi on certain points, but we ignore him at our peril."
"Paranormal phenomena have a habit of going away whenever they are tested under rigorous conditions. This is why the $1,000,000 reward of James Randi, offered to anyone who can demonstrate a paranormal effect under proper scientific controls, is safe."
"I regard Randi as a national treasure, and perhaps one of the remaining antidotes that may prevent the rotting of the American mind."
"Magicians are the most honest people in the world; they tell you they're gonna fool you, and then they do it."
"There exists in society a very special class of persons that I have always referred to as the Believers. These are folks who have chosen to accept a certain religion, philosophy, theory, idea or notion and cling to that belief regardless of any evidence that might, for anyone else, bring it into doubt. They are the ones who encourage and support the fanatics and the frauds of any given age. No amount of evidence, no matter how strong, will bring them any enlightenment. They are the sheep who beg to be fleeced and butchered, and who will battle fiercely to preserve their right to be victimized… the U.S. Patent Office handles an endless succession of inventors who still produce perpetual-motion machines that don't work, but no number of idle flywheels will convince these zealots of their folly; dozens of these patent applications flow in every year. In ashrams all over the world, hopping devotees of the Maharishi Mahesh Yogi will never abandon their goal of blissful levitation of their bodies by mind power, despite bruises and sprains aplenty suffered as they bounce about on gym mats like demented (though smiling) frogs, trying to get airborne. Absolutely nothing will discourage them."
"To make sure that my blasphemy is thoroughly expressed, I hereby state my opinion that the notion of a god is a basic superstition, that there is no evidence for the existence of any god(s), that devils, demons, angels and saints are myths, that there is no life after death, heaven nor hell, that the Pope is a dangerous, bigoted, medieval dinosaur, and that the Holy Ghost is a comic-book character worthy of laughter and derision. I accuse the Christian god of murder by allowing the Holocaust to take place -- not to mention the "ethnic cleansing" presently being performed by Christians in our world -- and I condemn and vilify this mythical deity for encouraging racial prejudice and commanding the degradation of women. (This comprehensive statement was arrived at by examining the statutes of those seven states that have remained in the Dark Ages, so that I might satisfy their definitions of blasphemy.)"
"The conjuror or con man is a very good provider of information. He supplies lots of data, by inference or direct statement, but it's false data. Scientists aren't used to that scenario. An electron or a galaxy is not capricious, nor deceptive; but a human can be either or both."
"Sir, there is a distinct difference between having an open mind and having a hole in your head from which your brain leaks out."
"Sometimes magic is just someone spending more time on something than anyone else might reasonably expect."
"This I believe: I believe there is no god."
"The idea of mind-altering substances gives me the willies. Fill your tank with nitro, the car goes fast, sure, but not far."
"Teller: Will you shut up! Homer Simpson: Hey, I thought you didn't talk. Teller: [nervously] Uh, I didn't mean to... it just slipped out. Oh god, now Penn's gonna beat me...I'm not the first Teller."
"The problem is, I know Trump, so my optimism has been squashed like a baby bird … Everything bad I had to say about him, I said to his face. … I think he’s very good, very compelling on that show [Celebrity Apprentice] … I really like him because of his absence of filters. I really like the glimpse we get into the human heart we get when someone loses their filters … If he weren’t running for president, you’d be seeing essays from me about how much I learned from Donald Trump and how much I loved being on the show … I’m feeling so, so, so guilty, because I feel like, along with millions of other people, I played right into this. The cynicism of the Clintons, the careful, tightrope walk of all politicians, forced me, as an atheist, to get down on my knees and pray that someone would come along with some kind of authenticity … Well, someone called my bluff, goddamn it. … I’m a pure and utter peacenik. I want a president who sings the praises of people, sings the praises of peace and sings the praises of working together for a great country … Abraham Lincoln wouldn’t have laughed about waterboarding … If you told me right now I could have another eight years of Obama, I would not hesitate to grab at it. … He is unquestionably good and unquestionably smarter than I am, which is putting the bar pretty low. I want a president that is kinder, smarter and more measured than me."
"If you just want to help people out you end up being a good person. I mean there’s every single kind of horrible self-help book will tell you if you’re feeling down and you’re feeling depressed just go help someone out and it’s a cliché, you wouldn’t even say it it’s so embarrassing, except it happens to be true."
"There are really good sociobiological reasons for why we evolved to cooperate. It really is good for all of us. You can be a hard ass and just run common sense, you know, what is the most effective way for people to interact and you do better if you treat people well, you just do. And on top of that the whole world does better if you treat people well. It works out on any level."
"I love people. And I think if you take the 7 billion people on the planet and you round it off, about 7 billion of them are good. To find bad people is really difficult. Not people doing bad things, but really bad people who get up in the morning and say, How can I fuck people up? That’s a really rare thing. Misguided, you know, mistaken, but I just can’t understand how this view of humanity that all we want to do is horrible things to each other and it’s just this belief in something else that stops us. And that that is what you see over and over again through the Bible. There’s reward and punishment but there’s no – I mean, nothing feels better than helping someone out. I mean, there’s nothing better, nothing better in the world than someone whose life was fucked up and you do a little something and now their life isn’t. I mean, you can talk about the joy of sex, hedonistic joys of food, and you can talk about the joy with your children, but man, someone is going through a hard time and you help them out, man you feel good for months."
"The question I get asked by religious people all the time is, without God, what’s to stop me from raping all I want? And my answer is: I do rape all I want. And the amount I want is zero. And I do murder all I want, and the amount I want is zero. The fact that these people think that if they didn’t have this person watching over them that they would go on killing, raping rampages is the most self-damning thing I can imagine. I don't want to do that. Right now, without any god, I don't want to jump across this table and strangle you. I have no desire to strangle you. I have no desire to flip you over and rape you."
"If every trace of any single religion were wiped out and nothing were passed on, it would never be created exactly that way again. There might be some other nonsense in its place, but not that exact nonsense. If all of science were wiped out, it would still be true and someone would find a way to figure it all out again."
"Atheists are also morally obligated to tell the truth as we see it. We should preach and proselytize too. We need to help believers. Someone who believes in god is wasting big parts of his or her life, holding back science and love, and giving "moral" support to dangerous extremists. If you believe something, you must share it; it's one of the ways we all learn about truth."
"Reading the Bible is the fast track to atheism. Reading the Bible means starting at "In the beginning..." and throwing it down with disgust at "...the grace of the lord Jesus be with all. Amen." I'm sure there are lots of religious people who've read the Bible from start to finish and kept their faith, but in my self-selected sample, all the people I know who have done that are atheists."
"You don't have to be brave or a saint, a martyr, or even very smart to be an atheist. All you have to be able to say is "I don't know.""
"Government is force — literally, not figuratively. I don't believe the majority always knows what's best for everyone. The fact that the majority thinks they have a way to get something good does not give them the right to use force on the minority that don't want to pay for it. If you have to use a gun, I don't believe you really know jack. Democracy without respect for individual rights sucks. It's just ganging up against the weird kid, and I'm always the weird kid."
"It's amazing to me how many people think that voting to have the government give poor people money is compassion. Helping poor and suffering people is compassion. Voting for our government to use guns to give money to help poor and suffering people is immoral self-righteous bullying laziness. People need to be fed, medicated, educated, clothed, and sheltered, and if we're compassionate we'll help them, but you get no moral credit for forcing other people to do what you think is right. There is great joy in helping people, but no joy in doing it at gunpoint."
"What makes me libertarian is what makes me an atheist — I don't know. If I don't know, I don't believe. I don't know exactly how we got here, and I don't think anyone else does, either. We have some of the pieces of the puzzle and we'll get more, but I'm not going to use faith to fill in the gaps. I'm not going to believe things that TV hosts state without proof. I'll wait for real evidence and then I'll believe. And I don't think anyone really knows how to help everyone. I don't even know what's best for me."
"My friend Richard Feynman said, "I don't know." I heard him say it several times. He said it just like Harold, the mentally handicapped dishwasher I worked with when I was a young man making minimum wage at Famous Bill's Restaurant in Greenfield, Massachusetts. "I don't know" is not an apology. There's no shame. It's a simple statement of fact. When Richard Feynman didn't know, he often worked harder than anyone else to find out, but while he didn't know, he said, "I don't know." I like to think I fit in somewhere between my friends Harold and Richard. I don't know. I try to remember to say "I don't know" just the way they both did, as a simple statement of fact. It doesn't always work, but I try."
"Rabbi Daniel Lapin: Here's a really blunt question: would the world be a better or a worse place if a billion Muslims became evangelical Christians tomorrow? Penn: [long pause] Everything else being equal, I think "yes". Rabbi Daniel Lapin: Then we agree. Penn: The argument is made by me that the celebration of faith, the glorification of faith, and faith being defined as The Bible kind of does as belief without proof, is not something that I feel is good to celebrate. To answer the question about evil, I always find that evil takes responsibility away. I want to have—whether it’s me or whether it's a criminal—I want to have full responsibility of my mistakes. And I think when you have this image, whether it's the Disney image of devil Pluto and angel Pluto on your shoulders, pulling you one direction or another, I think that idea of evil is an idea that is anti-responsibility."
"Atheism is the only real hope against terrorism."
"Interviewer: Are there any groups you won’t go after? Penn: We haven’t tackled Scientology [in Penn & Teller: Bullshit!] because Showtime doesn’t want us to. Maybe they have deals with individual Scientologists—I’m not sure. And we haven’t tackled Islam because we have families. Interviewer: Meaning, you won’t attack Islam because you’re afraid it’ll attack back … Penn: Right, and I think the worst thing you can say about a group in a free society is that you’re afraid to talk about it—I can’t think of anything more horrific."
"I can read ideas from all different people from all different cultures. Without God, we can agree on reality, and I can keep learning where I'm wrong. We can all keep adjusting, so we can really communicate. I don't travel in circles where people say, "I have faith, I believe this in my heart and nothing you can say or do can shake my faith." That's just a long-winded religious way to say, "shut up," or another two words that the FCC likes less."
"Believing there's no God means I can't really be forgiven except by kindness and faulty memories. That's good; it makes me want to be more thoughtful. I have to try to treat people right the first time around."