“Don't you believe in flying saucers, they ask me? Don't you believe in telepathy? — in ancient astronauts? — in the Bermuda triangle? — in life after death?No, I reply. No, no, no, no, and again no.One person recently, goaded into desperation by the litany of unrelieved negation, burst out "Don't you believe in anything?"Yes", I said. "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.”

“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.”

“To believe in nothing is as ridiculous as to believe in everything. Reason and factual evidence may convert a belief into knowledge.”

“I don't believe in anything, Mother," I said. "You told Armand long ago that you believe you'll find answers in the great jungles and forests; that the stars will finally reveal a vast truth. But I don't believe in anything. And that makes me stronger than you think”

“You can't convince a believer of anything; for their belief is not based on evidence, it's based on a deep seated need to believe”

“That's what I want, a mental evidence I can feel. I don't want physical evidence, proof you have to go out and drag in. I want evidence that you can carry in your mind and always touch and smell and feel. But there's no way to do that. In order to believe in a thing you've got to carry it with you. You can't carry the Earth, or a man, in your pocket. I want a way to do that, carry things with me always, so I can believe in them. How clumsy to have to go to all the trouble of going out and bringing in something terribly physical to prove something. I hate physical things because they can be left behind and become impossible to believe in them.”