"Extremism thrives amid ignorance and anger, intimidation and cowardice."

"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."

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

"You have to be a speedy reader because there’s so so much to read."

"How clever you are, to know something of which you are ignorant."

"Feel good about yourself. You have been blessed and you might not have even realized it."