Todd Stiefel, founder of the Stiefel Freethought Foundation, has spent more than $3.5 million in the name of making atheism more acceptable to the public. He discusses his activism and what he thinks will ultimately make atheism more palatable to the general public.

"I wouldn’t say that I’m trying to promote atheism; I’m not really much into proselytizing," says Stiefel. "I spend my career and my money trying to promote equality and trying to work to ensure the separation of church and state, which in my opinion is one of the absolute keys to our liberty."

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