There must be a god, because I don't know how things work.

“I’ll tell you why [religion is] not a scam, in my opinion,” he told Silverman. “Tide goes in, tide goes out. Never a miscommunication. You can’t explain that. You can’t explain why the tide goes in.”

Silverman looked stunned. “Tide goes in, tide goes out?” he stuttered. O’Reilly pressed on. “The water, the tide—it comes in and it goes out. It always goes in, then it goes out. … You can’t explain that. You can’t explain it.”

- Bill O'Reilly, disproving Atheism

(Post title from Stephen Colbert's response)

First thing I thought of

Charles Darwin (1871) sagely noted over a century ago, “ignorance more frequently begets confidence than does knowledge”

- Inspired by Mind Hacks' article on the Dunning-Kruger effect