"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 come from a poor family, I have seen poverty. The poor need respect, and it begins with cleanliness."

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

"Angry people are not always wise."

"Nobody minds having what is too good for them."

"It's such a happiness when good people get together."