"It's not about what you know, it's about what you can prove."

"I'm not a fan of people who try to cram their beliefs down your throat. I prefer to share information, and let people make up their own minds."

"I think the universe is much more interesting than any God that anyone has ever conceived."

"The cosmic perspective not only embraces our genetic kinship with all life on Earth but also values our chemical kinship with any yet-to-be discovered life in the universe, as well as our atomic kinsh…"

"I'm not saying there are no aliens. I'm just saying the evidence is insufficient for me to conclude it."