"I'm not an atheist. I'm an agnostic. I don't know what's out there, and neither do you."

"I'm often asked whether I believe in God. I'm an agnostic."

"I'm glad to be alive to see the universe unfold."

"If you want to assert a truth, first make sure it's not just an opinion that you desperately want to be true."

"I'm not afraid of questions. I'm afraid of people who don't ask questions."