"One of the saddest lessons of history is this: If we've been bamboozled long enough, we tend to reject any evidence of the bamboozle. We're no longer interested in finding out the truth. The bamboozle…"

"The nuclear arms race is like two sworn enemies standing waist-deep in gasoline, one with three matches, the other with five."

"Our loyalties are to the species and to the planet. We speak for Earth."

"The price of skepticism is the occasional loss of a great idea."

"The universe is full of mysteries waiting to be solved."