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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."

— Penn Jillette I don't know, so I'm an atheist libertarian (2011)

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More quotes by Penn Jillette

Atheism is the only real hope against terrorism.

I've always wanted to make the world a more rational place. I'm still working on it.

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."

God, No!: Signs You May Already Be an Atheist and Other Magical Tales (2011)

It's fair to say that the Bible contains equal amounts of fact, history, and pizza. … God works in mysterious, inefficient, and breathtakingly cruel ways.

My favorite thing about the Internet is that you get to go into the private world of real creeps without having to smell them.

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Quote text and notes from Wikiquote: Penn Jillette (page history), available under CC BY-SA 4.0. Source quality and labels are our own summary of what Wikiquote records.