"A thousand years ago, everybody knew the Earth was the center of the universe. Five hundred years ago, they knew the Earth was flat. Fifteen minutes ago, you knew we humans were alone on it. Imagine what you'll know tomorrow."

"I have never met a man so ignorant that I couldn't learn something from him."

"A little knowledge is a dangerous thing. Drink deep, or taste not the Pierian spring."

"Sarcasm is the lowest form of wit but the highest form of intelligence."

"I believe that tomorrow is another day and I believe in miracles."

"I have to be alone very often. I'd be quite happy if I spent from Saturday night until Monday morning alone in my apartment. That's how I refuel."